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Determination of low-temperature stress during the vegetative stage as a tool to predict plant yield in rice genotypes with contrasting tolerance levels J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-09-11 María Carolina Michelini, Ayelén Gazquez, Mariana Leonela Checovich, Andy Salazar Tamayo, Santiago Javier Maiale, Ana Bernardina Menéndez, Andrés Alberto Rodríguez
In this study, the first aim was to develop a rapid and non-destructive method for analysing rice genotypes' tolerance to low temperatures (LT) during the seedling stage. Using a growth parameter and a physiological parameter, a discriminant formula was developed to differentiate between tolerant and sensitive genotypes based on their LT tolerance score. The study identified several benefits of the
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Varietal effects on Greenhouse Gas emissions from rice production systems under different water management in the Vietnamese Mekong Delta J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-09-08 Thi Bach Thuong Vo, Kristian Johnson, Reiner Wassmann, Bjoern Ole Sander, Folkard Asch
Rice production accounts for 15% of the national Greenhouse Gas (GHG) emissions and Vietnam aims at reducing emissions from rice production by focusing on changing farming practices. However, the potential for mitigation through the selection of different rice varieties is still poorly understood. A two-year field screening of 20 rice varieties under continuous flooding (CF) and alternate wetting and
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Expression analysis of candidate genes as indicators for commencing drought stress in starch potatoes J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-08-21 Katharina Wellpott, Jannis Straube, Traud Winkelmann, Christin Bündig
Drought stress is a major problem for potato production and will be of grave importance due to climate change and the resulting temperature peaks along with drought periods in the vegetative growth phase of potato. Plants, as sessile organisms, adapt to their environment morphologically as well as biochemically. To cope better with abiotic stresses like drought, plants developed strategies like reactive
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The effect of silicon fertilizers on agronomic performance of bread wheat under drought stress and non-stress conditions J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-08-16 Marylyn M. Christian, Hussein Shimelis, Mark D. Laing, Toi J. Tsilo
Drought is one of the major constraints of wheat production, especially in rainfed wheat production systems. The objective of this study was to evaluate the effects of different silicon fertilizer formulations on the agronomic performance of diverse wheat genotypes under drought-stressed conditions. Twenty wheat genotypes were evaluated in field and greenhouse environments under non-stressed and drought-stressed
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Genotypic stability in root system architecture and aboveground biomass revealed diverse adaptability of peanut (Arachis hypogaea L.) to moderate water deficit J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-08-09 Yangyang Song, Brendan A. Zurweller, Marco D. Goyzueta Altamirano, Barry L. Tillman, Diane L. Rowland
Many crop species, including cultivated peanut (Arachis hypogaea L.), modify their above- and below-ground growth to cope with water deficit stress. This acclimation to water deficit often triggers a biomass partitioning shift—allocating more biomass to the roots, to increase the accessibility of roots to water resources. However, additional carbon partitioning to roots may not always translate into
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Responses of rice cultivars with different cold tolerance to chilling in booting and flowering stages: An experiment in Northeast China J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-07-28 Haoyu Ma, Xi Zhu, Tiehua Cao, Shanlong Li, Erjing Guo, Yanyin Shi, Kaixin Guan, E. Li, Ridan Sun, Xi Wang, Tao Li, Tianyi Zhang, Xiaoguang Yang
Climate change has led to an increasing trend in the intensity of global extreme weather events, including chilling. Breeding cultivars with high cold tolerance could be an important pathway to mitigate the negative effects of climate change. For rice, few studies have been focusing on the responses of different cold-tolerance cultivars on chilling stress. In this study, we selected four japonica rice
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Gluten subfractions of wheat storage proteins are affected by high night temperature during grain formation J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-07-20 Shamima Parveen, Poornima Sharma, Megha Kaushik, Pandurang R. Divte, Pranab Kumar Mandal, Neelu Jain, Anjali Anand
Gluten (gliadin + glutenin) protein in wheat flour is affected by high temperature (day and/or night) resulting in undesirable consequences on dough quality. A study was conducted with early and late-maturing wheat genotypes, to assess the spatial (superior- central and inferior- apical and basal spikelets) variation in the composition of gluten subfractions in the developing ear under high night temperature
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Varietal effects on methane intensity of paddy fields under different irrigation management J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-07-06 F. Asch, K. Johnson, T. B. T. Vo, B. O. Sander, V. N. Duong, R. Wassmann
Alternate wetting and drying irrigation (AWD) has been shown to decrease water use and trace gas emissions from paddy fields. Whereas genotypic water use shows little variation, it has been shown that rice varieties differ in the magnitude of their methane emissions. Management and variety-related emission factors have been proposed for modelling the impact of paddy production on climate change; however
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Evaluation of the effectiveness of irrigation methods and fertilization strategies for alfalfa: A meta-analysis J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-29 Wanlu Liu, Lulu Liu, Jiangbo Gao, Shaohong Wu, Yanhua Liu
Alfalfa (Medicago sativa L.) plays an important role in livestock production in most regions of the world, but the quantity and quality of alfalfa have been critically affected by drought events in recent years. Thus, quantifying the efficacy of widely used strategies, irrigation methods and fertilization that are aimed at improving drought resistance in alfalfa is a worthy topic that has been addressed
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Dilemma between yield and quality: Multigenerational effect of elevated CO2 and nitrogen supply on wheat cultivars J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-29 Xizi Wang, Xin Yang, Shenglan Li, Xiangnan Li, Kehao Liang, Fulai Liu
Studying the long-term effect of elevated atmospheric CO2 concentration (e[CO2]) on wheat (Triticum aestivum L.) over multiple generations has received increasing attention. Here, five wheat cultivars were grown under ambient CO2 concentration (a[CO2], 400 ppm) and e[CO2] (800 ppm), respectively, for three consecutive generations (G1 to G3) under two nitrogen (N) levels (1N and 2N). Compared to plants
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Tree lines do not reduce grassland productivity and herbage quality in alley cropping under drought J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-21 Rahel Sutterlütti, Martin Komainda, Manfred Kayser, Johannes Isselstein
In alley cropping, woody perennials are combined with agricultural crops or grassland in order to benefit from favourable interactions between trees and crops. Trees influence growth and senescence processes in grassland as well as plant chemical composition and plant water use. In a field experiment with grassland and alley-cropped willow coppices, we analysed the impact of distance and position relative
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Silicon alleviates drought damage by increasing antioxidant and photosynthetic performance in cowpea J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-20 Wallace de Sousa Leite, Rafael de Souza Miranda, Maurisrael de Moura Rocha, Alexson Filgueiras Dutra, Amanda Soares Santos, Alana Cavalcante da Silva, Flávia Marques de Brito, Ricardo Silva de Sousa, Ademir Sergio Ferreira de Araújo, Clístenes Williams Araújo do Nascimento, Alan Mario Zuffo, Francisco de Alcântara Neto
Water deficits have been considered the most restrictive environmental constraint on agricultural production worldwide. The current study aimed to investigate the role of silicon nutrition (Si) in activating defence mechanisms against drought damage in cowpea cultivars. The experiments were carried out in a randomized block design in a 2 × 2 × 4 factorial scheme, corresponding to two cowpea cultivars
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Salinity effects on the activities of ROS scavenging enzymes in leaves of two sweet potato clones J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-09 Shimul Mondal, Susane Burgert, Julia Asch, Ebna Habib Md Shofiur Rahaman, Folkard Asch
Sweet potato production, particularly in coastal areas is often prone to salinity. Salt-tolerant clones will be needed to maintain production, but to date, little is known about salt tolerance traits in sweet potato. Salt stress may result in excessive uptake of unwanted ions into plant tissues leading to the formation of reactive oxygen species (ROS), which in turn may destroy membranes and reduce
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Cover crop water consumption: Analysing performance of the agrometeorological model for the calculation of actual evapotranspiration (AMBAV) in a container experiment J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-06 Tabea Selzer, Sven Schubert
Due to anthropogenic climate change, cover crop water consumption in winter could potentially increase drought stress for a succeeding crop. Simulation of cover crop evapotranspiration (ET) losses could be a tool for farmers to make smart management decisions. In Germany, the model AMBAV is used by the German Meteorological Service (DWD) to advise farmers in irrigation management. We compared measured
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Classification of soybean genotypes during the seedling stage in controlled drought and salt stress environments using the decision tree algorithm J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-06-01 Bruno Rodrigues de Oliveira, Alan Mario Zuffo, Fábio Steiner, Jorge González Aguilera, Hebert Hernán Soto Gonzales
Soybean is one of the most important oilseed crops grown worldwide. However, abiotic stresses such as drought and salinity can seriously affect soybean production, especially in tropical climate conditions. To evaluate the adaptability and stability of soybean genotypes under abiotic stress conditions, some studies have proposed a multitrait tool to select stress-tolerant soybean genotypes through
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Current status of global rice water use efficiency and water-saving irrigation technology recommendations J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-22 Qiu Haonan, Wang Jie, Yang Shihong, Jiang Zewei, Xu Yi
Rice has a high water requirement, but water use efficiency (WUE) in rice has always been low, and the status of rice WUE and the factors influencing it in various countries around the world is currently unclear. Therefore, this paper collected 56 articles from 2000 to 2022, through which WUE data from different countries and different provinces in China were collated, and the effects of various water-saving
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Transmission of photosynthetically active radiation and the productivities of soybean and maize in agroforestry systems J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-19 Wesley F. D. X. Aragão, Cornélio A. Zolin, Maurel Behling, José R. M. Pezzopane, Elen S. O. C. Ximenes, Danilton L. Flumignan, Ciro A. S. Magalhães
In integrated crop-livestock-forestry (ICLF) systems, an agroforestry model, the forestry component influences the distribution of photosynthetically active radiation (PAR) and alters grain productivity. The aim of this study was to evaluate the effects of systematic and selective thinning of eucalyptus stands on the productivity of soybean and maize grown. The randomized block-designed experiment
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Relationship between characteristics of basal internodes and lodging and its physiological mechanism in direct-seeded rice J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-10 Weiyang Liu, Xuhong Fan, Yue-yue Liu, Shuying Bao, Yuya Lu, Dongsheng Gai, Xukun Fu, Juan Du, Liying Guo, Qiang Zhang, Yanqiu Geng, Xiwen Shao
Lodging is an important factor that limits rice yield and the large-scale promotion of direct-seeded rice (DSR). The objective of this study was to clarify the relationship between the characteristics of basal internodes and lodging and the physiological mechanism underlying this process in DSR. A field study was conducted in Changchun, Jilin Province, China, using a japonica rice variety Jiyujing
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In-field evaporative protection for dryland wheat and lentil crops using polymers J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-09 James G. Nuttall, Audrey J. Delahunty, Garry J. O'Leary, Ashley J. Wallace
In semi-arid cropping regions where rainfall is variable, stored soil water is important for reducing the impacts of dry periods; however, in-season evaporation limits yield potential. We tested the productivity benefits of protecting wheat and lentil crops from evaporation using inter-row polymer cover, when grown in southern Australia. For wheat, white polyvinyl chloride (PVCw) increased yield by
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Screening of barley germplasm for drought tolerance based on root architecture, agronomic traits and identification of novel allelic variants of HVA1 J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-06 Manju, Shashank Kumar Yadav, Dhammaprakash Pandhari Wankhede, Ankit Saroha, Sherry Rachel Jacob, Rakesh Pandey, Axma Dutt Sharma, Sheela, Manoj Kumar, Vikender Kaur
Drought is a major constraint for barley production as it is normally cultivated in rainfed and marginal areas lacking optimum productivity. The domestication bottleneck and further selection pressure have resulted in reduced genetic diversity in barley. Genebank germplasm holds a huge potential for identifying new alleles for stress tolerance. In the present study, a diverse set of 214 accessions
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Genotypic responses of rice to alternate wetting and drying irrigation in the Mekong Delta J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-04 Kristian Johnson, Thuong Ti Bach Vo, Duong Van Nha, Folkard Asch
In the Vietnamese Mekong Delta (VMD), alternate wetting and drying (AWD) in rice (Oryza sativa L.) production during the dry season has the potential to reduce greenhouse gas emission and freshwater use. However, its effect on yield compared with continuously flooded systems can vary. To evaluate the effect of AWD on yield and yield-forming processes on genotypes commonly grown in the VMD, field trials
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Plant photosynthetic responses under drought stress: Effects and management J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-05-04 Noreen Zahra, Muhammad Bilal Hafeez, Abida Kausar, Maryam Al Zeidi, Sovetgul Asekova, Kadambot H. M. Siddique, Muhammad Farooq
Balanced photosynthesis is essential for improved plant survival and agricultural benefits in terms of biomass and yield. Photosynthesis is the hub of energy metabolism in plants; however, drought stress (DS) strongly perturbs photosynthetic efficiency due to biochemical and diffusive limitations that reduce key photosynthetic components and close stomata. This review describes photosynthetic responses
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Separate or combined effects of soil compaction and/or drought on gas exchange, chlorophyll fluorescence and physiological traits of maize (Zea mays L.) hybrids J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-04-23 Maciej T. Grzesiak, Anna Maksymowicz, Katarzyna Hura, Kinga Dziurka, Agnieszka Ostrowska, Stanisław Grzesiak
In the natural environment, plants are subjected to simultaneous or sequential presence of various abiotic and/or biotic stresses, including soil compaction and soil drought. The effects of these stresses tested separately are relatively well understood, but still little is known about their simultaneous effects on plants. Our research involved four single hybrids of maize differing in their degree
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Does the plant growth regulator paclobutrazol enhance root growth of maize exposed to drought stress during flowering? J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-04-17 Birgit W. Hütsch, Lukas Kehm, Sven Schubert
Due to climate change, crop production will increasingly be affected by water limitation, causing remarkable decreases in grain yields of cereals. Plant growth regulators such as paclobutrazol (PAC) have been shown to protect plants from detrimental impacts of drought stress, and improvement of root growth and antioxidant activity were identified as main reasons for their positive effect. A container
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Saline stress affects the growth of Saccharum complex genotypes J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-04-13 Welson Lima Simões, Anderson Ramos de Oliveira, Flávio Dessaune Tardin, Cíntia Patrícia Martins de Oliveira, Lizz Kezzy de Morais, Larissa Pereira Ribeiro Teodoro, Paulo Eduardo Teodoro
Soil salinity affects plant growth, compromising sugarcane cultivation in regions with great production potential. Saccharum complex genotypes that respond positively to growth under saline environment can be used in the diversification of sugarcane cultivars to obtain greater economic returns. The objective of this study was to evaluate growth-related traits of Saccharum genotypes grown under the
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Maize (Zea mays L.) responses to heat stress: Mechanisms that disrupt the development and hormone balance of tassels and pollen J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-04-12 Jing Sun, Huiqin Wang, Hao Ren, Bin Zhao, Jiwang Zhang, Baizhao Ren, Peng Liu
Global climate changes have led to frequent and recurrent heat stress, which has seriously affected the world maize production. The experiment presented in this paper was carried out during the maize-growing season in 2021 and 2022 at the Huang–Huai–Hai Region Maize Science and Technology Innovation Center (36°09′N, 117°09′E) in Tai'an, Shandong province, China. The test site is located in the semi-humid
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Impact of Nax genes for Na+ exclusion from leaves on bread wheat yield on saline soils J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-04-10 Richard A. James, Md. Mustafa Khan, Mrinmoy G. Neogi, Alexander B. Zwart, Rana Munns, Md. Rezwan Kabir, Md. Abdullah Yousuf Akhond
Wheat production in many countries is threatened by climate change and rising sea levels causing increases in salt-water intrusion in low-lying coastal areas. Large areas of the coastal zone of Bangladesh remain fallow during the dry season primarily due to salinity. It is estimated that 0.86 million hectares of land currently under fallow in the dry season would be suitable for wheat production using
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An agronomic study of legacy effects from annual legume pastures in acid soils J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-04-10 Daniel Kidd, Manjula Premaratne, Joanne Wisdom, Dion Nicol, Megan H. Ryan
The use of acid soil-tolerant annual legume pasture species and liming to raise soil pH can have legacy effects that improve subsequent wheat crop growth in acid soils. We established a two-year experiment in a semi-arid environment with and without historical lime application to investigate how acid soils (±lime) influence the legacy effects of annual legume pastures. We measured legume and cereal
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Distinctive root system adaptation of ploidy wheats to water stress: A cue to yield enhancement J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-03-23 Pu-Fang Li, Bao-Luo Ma, Jairo A. Palta, Xiao-Fei Wei, Sha Guo, Tong-Tong Ding, Yong-Qing Ma
Given the worldwide effort to improve crop drought resistance, it is crucial to understand the mechanisms of root system adaptation of ploidy wheat to water-deficient environments. A meta-analysis was performed to examine the changes in root system mechanisms under drought conditions. Data used in the analysis were drawn from 192 papers, taking into account wheat ploidy levels as well as pot and field
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Climate stressors modulate interannual olive yield at province level in Italy: A composite index approach to support crop management J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-03-17 Arianna Di Paola, Edmondo Di Giuseppe, Andrew Paul Gutierrez, Luigi Ponti, Massimiliano Pasqui
Although a large part of Italy is characterized by a Mediterranean climate intrinsically highly suitable for olive cultivation, farmers may experience variable interannual yields with associated agronomic and management costs. A detailed overview of major climate stressors and their ongoing impacts on olive yield variability at a broad spatial–temporal scale across Italy could improve the understanding
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Effect of Bacillus paralicheniformis on soybean (Glycine max) roots colonization, nutrient uptake and water use efficiency under drought stress J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-03-13 Jie Liu, Lorenzo Fimognari, Jaqueline de Almeida, Camilla Niketa Gadomska Jensen, Stéphane Compant, Tiago Oliveira, Jacob Baelum, Milica Pastar, Angela Sessitsch, Lars Moelbak, Fulai Liu
Spore-forming, plant growth-promoting bacteria (PGPR) offer extraordinary opportunities for increasing plant productivity in climate change scenarios. Plant–water relationships, root development and photosynthetic performances are all key aspects of plant physiology determining yield, and the ability of PGPR to influence these in a coordinated manner is crucial for their success. In this study, we
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NDVI and grain fill duration are important to be considered in breeding for terminal heat stress tolerance in wheat J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-03-01 Monu Kumar, Vinod Kumar Mishra, Ramesh Chand, Sandeep Sharma, Uttam Kumar, Jai Prakash Jaiswal, Mukesh Choudhary, Anima Mahato, Ashutosh, Prashant Singh, Arun Kumar Joshi
Terminal heat stress is a major constraint for taking a profitable crop of wheat by small and marginal farmers in the Indo-Gangetic Plains of south Asia. Hence, breeders remain in constant search for heat-tolerant genotypes. This study was done with the purpose to find out high-yielding wheat genotypes that perform stably under terminal heat stress as well as to conclude an easy phenotyping trait for
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Morphophysiological and nitrogen metabolism responses of inoculated peanut cultivars with contrasting drought tolerance J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-03-01 Ana Laura Furlan, Federico Morla, Eliana Bianucci, Matías Martin, Mayco Ojeda, Ana Clara Marchesi, Verónica Navarro, Stella Castro
Legumes grow in temperate and warm climates, being susceptible to unpredictable episodes of water deficit. This study aimed to evaluate (i) morphology and N-compound contents in roots and nodules, (ii) N and C contents in shoots and (iii) crop yield in two peanut cultivars with contrasting drought tolerance, inoculated with a reference N-fixing strain and challenged by water deficit conditions. For
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Evaluation of soybean genotypes grown under soil compaction J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-02-22 Nayara Pereira Capobiango, Giulia Badotti Bessa, Gabriel Cordeiro de Oliveira Peris, Felipe Lopes da Silva, Denise Cunha Fernandes dos Santos Dias, Raphael Bragança Alves Fernandes, Martha Freire da Silva, Laércio Junio da Silva
Soil compaction has caused negative impacts on soybean productivity due to the excessive use of machinery and heavy agricultural implements in the cultivation areas. Effects of two levels of soil compaction were investigated on 60 soybean genotypes in a field experiment. Soil properties, weather conditions in the region and changes in agronomic characteristics of the crop were evaluated. The genotypes
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The involvement of metallothioneins and stress markers in response to osmotic stress in Avena sativa L. J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-02-06 Wiktoria Konieczna, Agnieszka Mierek-Adamska, Marzena Warchoł, Edyta Skrzypek, Grażyna B. Dąbrowska
Osmotic stress frequently caused by drought is the most threatening environmental stress that remarkably reduces crop yield. Oat (Avena sativa L.) is sensitive to water deficiency during growth. Plant metallothioneins (pMTs) show tremendous promise in enhancing general stress tolerance in plants. This study aimed to verify whether pMTs and elements of the antioxidant defence system protect oat against
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Water deficit as a trigger to immature soybean pod opening J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-02-01 Lorena de Oliveira Moura, Martha Freire da Silva, Fernando França da Cunha, Edgard Augusto de Toledo Picoli, Francisco Charles dos Santos Silva, Felipe Lopes da Silva
Recently, the opening of immature and green pods has been identified in some soybean genotypes and it has raised concern. The cause of this opening has not been elucidated yet, but there is some evidence it may be associated with water-deficit occurrences. Thus, this study aimed to verify the influence of water deficit on the opening of immature pods and correlate this feature with other agronomic
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Effects of different shallow and saline groundwater depths on soil salinity, evapotranspiration, grain yield and spike traits of winter wheat J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-01-30 Mehmet Sait Kiremit, Hakan Arslan
The contribution of groundwater to evapotranspiration in crop irrigation scheduling is gaining importance worldwide. A two consecutive year wheat experiment was conducted in drainable lysimeters to evaluate the response of grain yield and quality, spike traits, water use efficiency, evapotranspiration and thousand kernel weight of wheat plants under twelve different shallow and saline groundwater conditions
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Responses of the photosynthetic characteristics of summer maize to shading stress J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-01-22 Zhi-Chao Sun, Wen-Jie Geng, Bai-Zhao Ren, Bin Zhao, Peng Liu, Ji-Wang Zhang
The vast majority of the energy and substance required for maize growth and development and related metabolic processes come from the photosynthesis of leaves. Over the past 60 years, the amount of solar radiation reaching the earth's surface has decreased significantly, reducing the photosynthetic rate of crops and leading to a significant reduction in yields. However, (1) the effects of shading stress
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An experimental study on the effects of intermittent chilling at different growth stages on rice yield in Northeast China J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-01-09 Yanying Shi, Lizhi Wang, Shukun Jiang, Erjing Guo, Tao Li, Litao Zhou, Wenmeng Zhang, Haoyu Ma, Kaixin Guan, E. Li, Tianyi Zhang, Xiaoguang Yang
In Northeast China, the frequency and intensity of chilling events has been increasing continuously, which places regional rice production at an increasing risk for yield loss. Previous studies have shown that continuous chilling at the tillering, booting and flowering stages could reduce rice grain yield. However, the effects of intermittent chilling at different growth stages on rice yield have rarely
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Water dynamics of cover crops: No evidence for relevant water input through occult precipitation J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-01-06 Tabea Selzer, Sven Schubert
Rising temperatures and disruption of rainfall patterns due to climate change make water a limiting growth factor even in regions of temperate climates. Thus, producing ‘more crop per drop’ is of utmost importance. While cover crops provide many benefits to cropping systems, their influence on soil water is discussed controversially. While an increase in transpiration can lead to soil water depletion
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24-Epibrassinolide promotes activation of physiological compensation mechanisms in response to drought stress and rehydration and improves yield in soybean J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-12-22 André Lucas Januário Silva, Vilma Marques Ferreira, Claudiana Moura dos Santos, Jônatas Vieira dos Santos, Juliany Mayra Teixeira de Moura Barros, Wemerson Saulo da Silva Barbosa, Marcos Antônio da Silva Barrozo, Laurício Endres, Gilberto Costa Justino
Drought stress is the main limiting factor for the yield of soybean crop in the world. Alternatives to minimize the impacts of water deficit on plants involve the application of plant bioregulators, among which Brassinosteroids stand out. In this study, nodulated soybean plants were used to investigate the ability of the 24-epibrassinolide (EBR) bioregulator to reduce the damage caused to physiological
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The effect of drought stress on nodulation, plant growth, and nitrogen fixation in soybean during early plant growth J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-12-21 Rhea Amor Lumactud, Danielito Dollete, Dilrukshi Kombala Liyanage, Krzysztof Szczyglowski, Brett Hill, Malinda S. Thilakarathna
Soybean [Glycine max (L.) Merr.] is one of the most important grain legume crops in the world. Soybean forms a symbiotic relationship with the nitrogen-fixing rhizobia bacteria that reside in root nodules and fix atmospheric nitrogen. Most of the soybean's nitrogen demand is derived from symbiotic nitrogen fixation (SNF). Drought is becoming a major threat to crop production in the world. Legumes are
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Effect of N and CO2 supply on source size per grain at anthesis and its relationship with grain growth in wheat J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-10-27 Remy Manderscheid, Markus Dier
Rising atmospheric CO2 concentration ([eCO2]) increases the yield of wheat mainly by increasing grain number, but effects on single grain weight are variable. It is discussed whether single grain growth is limited by the sink or the source size under a non-stress environment. This study explores the effect of e[CO2] combined with varying N supply on the source and sink size during grain filling. Source
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Effect of soil drought on growth and yield of maize (Zea mays L.) hybrids grown under compacted soil J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-10-22 Maciej T. Grzesiak, Tomasz Hura, Anna Maksymowicz, Kinga Dziurka, Grzegorz Rut, Andrzej Rzepka, Stanisław Grzesiak
In this study, we examined responses of maize hybrids differing in susceptibility to soil compaction and drought in the case of their separate or combined action. We ran field and greenhouse experiments and determined effects on grain yield, biomass, weight of 1000 grains, shoot and roots dry matter (DM), shoot-to-roots ratio, harvest index, plant height, emergence index, leaf area and greening and
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Effect of waterlogging stress on grain nutritional quality and pod yield of peanut (Arachis hypogaea L.) J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-10-22 Ruier Zeng, Tingting Chen, Hui Zhang, Jing Cao, Xi Li, Xinyue Wang, Ying Wang, Suzhe Yao, Yu Gao, Yong Chen, Lei Zhang
To investigate the effects of waterlogging stress on grain nutritional quality and pod yield, peanut plants were waterlogged for 3 and 6 days at 7, 14, 21, 28, 35, 42, 49, 56 and 63 days after gynophores touched the ground in 2019 and 2020. Results revealed that compared with the control treatment, the oil and starch content in grain increased, while crude protein and soluble sugar content decreased
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Grain yield, harvest index, water-use efficiency and nitrogen partitioning to grain can be improved by application of the plant growth regulator paclobutrazol to maize plants with reduced N supply J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-09-17 Birgit W. Hütsch, Sven Schubert
Applications of plant growth regulators such as paclobutrazol (PAC) to grain maize frequently caused depressions in grain yield. This negative impact probably originated from treatments at an early growth stage during plant ontogenesis when the determination of potential kernel number coincided with time of regulator application. However, stability of grain yield itself is of high relevance, and it
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Effects of temperature and light conditions during the late growth stage on delayed stem senescence and cytokinin levels in the xylem exudate of soybean J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-08-08 Katsunori Isobe, Ami Sasaki, Shingo Fukuoka, Kohta Hasegawa, Daisuke Suzuki, Masao Higo
Delayed stem senescence (DSS) in soybean plants is defined as retarded leaf and stem maturity, even if pods mature normally. This phenomenon is a serious problem for the combine harvesting of soybean in Japan. Our previous research showed that DSS occurred more frequently in June sowing than in July sowing, and the plants sown in June were exposed to higher temperature and higher solar radiation intensity
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Photosynthetic characteristics of subtending leaves and their relationships with soybean pod development under heat, drought and combined stresses J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-08-02 Xiangbei Du, Xinyue Zhang, Zhi Wei, Weixia Lei, Guoyu Hu, Zhiping Huang, Lingcong Kong
Soybean is usually grown under rain-fed conditions, and long-term drought stress often occurs with short-term heat stress. This study aimed to investigate changes in the photosynthetic characteristics of subtending leaves and their relationships with pod development under short-term heat, long-term drought and their combined stresses. Short-term heat stress lasted for 5 days began at R5 stage, and
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Variabilities in symbiotic nitrogen fixation and carbon isotope discrimination among peanut (Arachis hypogaea L.) genotypes under drought stress J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-07-29 Xu Wang, Charles Y. Chen, Phat Dang, Joshua Carter, Shuli Zhao, Marshall C. Lamb, Ye Chu, Corley Holbrook, Peggy Ozias-Akins, Thomas G. Isleib, Yucheng Feng
Drought stress is one of the major environmental factors limiting peanut (Arachis hypogea L.) productivity. Peanut response to drought varies depending on genotypic characteristics, crop growth stages, and environmental conditions. The objective of this study was to evaluate the effects of drought stress and rehydration on symbiotic nitrogen fixation and carbon isotope discrimination in peanut genotypes
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Establishment of a crop evapotranspiration calculation model and its validation J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-07-29 Yunfei Tuo, Qian Wang, Lijuan Zhang, Fangyuan Shen, Fei Wang, Yang Zheng, Zhaoyi Wang
In order to contribute knowledge on the method used to calculate the actual crop evapotranspiration, soil, crop, atmosphere, and water spatial structure were integrated into a complete system. Based on the energy balance equation and aerodynamic equation, the meteorological data was reduced and the crop physiological parameter was increased, then the crop evapotranspiration calculation model under
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Atmospheric and soil water deficit induced changes in chemical and hydraulic signals in wheat (Triticum aestivum L.) J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-07-29 Özgür Tatar, Holger Brück, Folkard Asch
Plant responses to soil drying and the metabolic basis of drought-induced limitations in stomatal opening are still being discussed. In this study, we investigate the roles of root-born chemical and hydraulic signals on stomatal regulation in wheat genotypes as affected by soil drought and vapour pressure deficit. Twelve consecutive pot experiments were carried out in a glasshouse. Two bread wheat
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Development of an irrigation regime for winter wheat to save water resources by avoiding irrigation at anthesis stage J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-07-23 Baojian Wu, Xiang Lin, Muhammad Fraz Ali, Dong Wang
Latest published information is limited on agronomic responses of winter wheat to irrigation quantity and the necessity of irrigation at the anthesis stage. This study was conducted to (1) evaluate winter wheat yield, water use, assimilate redistribution and economic benefit with respect to water input and (2) quantify relationship between water input and yield to develop a standard for withholding
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Sorghum bicolor prioritizes the recovery of its photosynthetic activity when re-watered after severe drought stress, while manages to preserve it under elevated CO2 and drought J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-07-23 Xabier Simón Martínez-Goñi, Anabel Robredo, Usue Pérez-López, Alberto Muñoz-Rueda, Amaia Mena-Petite
Understanding plant response and resilience to drought under a high CO2 environment will be crucial to ensure crop production in the future. Sorghum bicolor is a C4 plant that resists drought better than other crops, which could make it a good alternative to be grown under future climatic conditions. Here, we analyse the physiological response of sorghum under 350 ppm CO2 (aCO2) or 700 ppm CO2 (eCO2)
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Modelling climate change impacts on wet and dry season rice in Cambodia J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-07-21 Jorge Alvar-Beltrán, Riccardo Soldan, Proyuth Ly, Vang Seng, Khema Srun, Rodrigo Manzanas, Gianluca Franceschini, Ana Heureux
Irregular rainfall, rising temperatures and changing frequency and intensity of extreme weather events are projected to reduce crop yields and threaten food security across the tropical monsoon sub-region. However, the anticipated extent of impact on crop yields and crop water productivity (CWP) is not yet thoroughly understood. The impacts of climate change on rice yields and CWP are assessed over
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Effects of elevated CO2 on grain yield and quality in five wheat cultivars J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-06-23 Xizi Wang, Xiangnan Li, Yuyue Zhong, Andreas Blennow, Kehao Liang, Fulai Liu
Elevated atmospheric CO2 concentrations (e[CO2]) have a significant impact on plant physiology, grain yield and quality and the specific response of plants to e[CO2] is closely linked to cultivars. Here, five Chinese wheat (Triticum aestivum L.) cultivars were grown under ambient CO2 (a[CO2], 400 ppm) and e[CO2] (800 ppm). CO2 enrichment significantly increased net photosynthetic rate and water use
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Improving the estimation of soil water evaporation based on days after wetting J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-06-21 Élvis da Silva Alves, Lineu Neiva Rodrigues, Fernanda Laurinda Valadares Ferreira
Soil evaporation constitutes a major pathway of water loss in agriculture. Understanding its dynamics in the face of drying and soil cover is fundamental to improve both simulation models and the sustainability of production systems. Thus, the objective of this study was to estimate soil evaporation as a function of drying and percentage of soil cover. Three experiments were carried out in three different
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Photosynthetic activity and water use efficiency of Salvia verbenaca L. under elevated CO2 and water-deficit conditions J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-06-17 Muhammad Mansoor Javaid, Singarayer K. Florentine, Muhammad Ashraf, Athar Mahmood, Abdul Sattar, Allah Wasaya, Feng-Min Li
Investigating the combined effects of elevated CO2 concentration and water-deficit on weed plants is crucial to gaining a thorough understanding of plant performance and modifying agricultural processes under changing climate conditions. This study examined the effect of elevated CO2 concentration and water-deficit conditions on leaf gas exchange, water use efficiency, carboxylation efficiency and
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CO2 elevation and nutrient patchiness interactively affect morphology, nitrogen uptake, partitioning and use efficiency of Nicotiana tabacum L. (tobacco) during anthesis J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-06-16 Lin Zhang, Guitong Li, Caibin Li, Fulai Liu
The stimulation effect of elevated [CO2] (e[CO2]) on plant growth is modulated by nitrogen (N) availability, yet the mechanisms of this modulation under patchy N supply remain largely elusive. This study aimed to investigate the mechanisms by which patchy nutrient supply in the root-zone influence on N uptake, partitioning and use efficiency of tobacco plants (Nicotiana tabacum L.) grown under e[CO2]
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Effects of nitrogen and water stress on the rehydration, endogenous hormonal regulation and yield of maize J. Agron. Crop Sci. (IF 3.5) Pub Date : 2022-06-16 Yu Xin Chi, Shakeel Ahmad, Ke Jun Yang, Jian Fu, Li Yang, Xun Bo Zhou, Hong De Zhu
Water scarcity is known to be a strong limiting factor affecting maize grown and yield in cold semi-arid regions. Numerous studies have shown that rehydration improves maize growth. Our study aimed to explore the effects of rehydration treatments on maize growth and yield under water and nitrogen stress during different growth stages. We selected the drought-tolerant maize variety Nendan 19 (ND19)