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Comprehensive evaluation and screening identification indexes of heat‐resistance indices in cotton (Gossypium hirsutum L.) J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-29 Liuyan Yang, Xingke Liu, Jiahao Duan, Kang Du, Yuyao Wang, Xingjia Liang, Yang Liu, Wei Hu, Zhiguo Zhou, Lei Zhang, Wenqing Zhao
Cotton (Gossypium hirsutum L.) cultivars exhibit varying responses to heat stress. To investigate the heat resistance of various cotton and establish an index system for evaluating their heat resistance, 21 cotton cultivars were selected and subjected to two temperature regimes (CK, average temperature 28°C, 32/24°C; HT, average temperature 38°C, 42/34°C). The results showed that under high temperatures
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The complex stress of waterlogging and high temperature accelerated maize leaf senescence and decreased photosynthetic performance at different growth stages J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-24 Jingyi Shao, Qinghao Wang, Peng Liu, Bin Zhao, Wei Han, Jiwang Zhang, Baizhao Ren
The greenhouse effect caused by global warming was becoming more and more obvious, resulting in increased frequency of high temperature and high humidity, which significantly affected maize productivity. However, it was poorly understood how the interactions of high temperature and high humidity affected leaf senescence, photosynthetic performance and yield of summer maize. Three stress treatments
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Unravelling the interplay of different traits and parameters related to nitrogen use efficiency in wheat for climate-resilient agriculture J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-20 Gayatri, Puja Mandal, Karnam Venkatesh, Pranab Kumar Mandal
Enhancing Nitrogen Use Efficiency (NUE) is extremely important towards mitigating climate change, especially in wheat where the NUE is less than 50%. Hence, optimizing grain yield under reduced application of nitrogenous fertilizer is a significant challenge. To address this challenge, a comprehensive study was conducted to investigate various agronomic traits and morphological, biochemical and molecular
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Soil drought during the development of cotton ovule destroyed the antioxidant balance of cotton pistil to hinder the ovule formation J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-21 Mengdie Cheng, Zhanhan Wang, Yuting Cao, Jipeng Zhang, Huilian Yu, Shanshan Wang, Zhiguo Zhou, Wei Hu
Reproductive failure in cotton caused by drought has been reported to be closely associated with alterations in pistil fertility; however, the mechanism of the effect of drought on pistil fertility in cotton is less studied. We hypothesized that drought would inhibit the ovule formation to alter pistil potential fertility. To address this hypothesis, we conducted a water deficit induction experiment
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Phenotypic variability for early drought stress resistance in tetraploid wheat accessions correlates with terminal drought performance J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-17 Giovanni Maria Poggi, Simona Corneti, Iris Aloisi, Francesca Ventura
Durum wheat (Triticum durum Desf.) is a fundamental staple food for the countries of the Mediterranean basin. Climate change is predicted to cause a trend of increasing drought severity in this region in the near future, necessitating the improvement of durum wheat's resilience to drought stress. Using polyethylene glycol to simulate water scarcity, early vigour parameters in germinating seeds are
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CO2 elevation and N fertilizer supply modulate leaf physiology, crop growth and water use efficiency of maize in response to progressive soil drought J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-19 Manyi Zhang, Guiyu Wei, Bingjing Cui, Chunshuo Liu, Heng Wan, Jingxiang Hou, Yiting Chen, Jiarui Zhang, Jie Liu, Zhenhua Wei
Elevated atmospheric CO2 concentration (e[CO2]) and varied nitrogen (N) fertilization levels may mediate the different responses of C4 crops to progressive soil drought. In this study, the effects of reduced N (N1, 0.8 g pot−1) and adequate N (N2, 1.6 g pot−1) supply on leaf physiology, plant growth and water use efficiency (WUE) of maize (C4 crop) exposed to progressive soil drought grown at ambient
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Regional detection and assessment of chilling damage on maize considering land surface temperature, crop growth status and solar radiation changes J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-02-05 Jingxiao Zhang, Jiabing Cai, Di Xu, Hongfang Chang, Baozhong Zhang, Zheng Wei
Increased frequency and severity of chilling damage events pose potential risks to crop performance and productivity due to climate change. Accurate and real-time access to chilling damage is important for crop growth and yield stability based on field's actual environment. To precisely identify regional chilling events and evaluate the impacts on crops, this study presents a model to estimate field
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Warm-season turfgrass species genotype-by-environment interaction for turfgrass quality under drought J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-01-18 Beatriz Tome Gouveia, Ambika Chandra, Kevin E. Kenworthy, Paul L. Raymer, Brian M. Schwartz, Yanqi Q. Wu, Susana R. Milla-Lewis
One of the biggest challenges the turfgrass industry is currently facing is limitations of available water for irrigation of turfgrass areas. Efforts on breeding for drought resistance have increased over the past several years across the United States. Thus, the objectives of this study were to evaluate the performance of bermudagrass (Cynodon spp. Rich.), St. Augustinegrass (Stenotaphrum secundatum
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Tall fescue tiller survival over summer in a subtropical environment: The role of the size and depth of root systems J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-01-16 J. M. Jáuregui, D. F. Michelini, G. H. Sevilla, G. Berhongaray, G. D. Berone, J. Baudracco, P. Chilibroste, M. G. Agnusdei, F. A. Lattanzi
Pasture persistence is a key determinant of the economic and environmental performance of pastoral animal production systems. Large and deep root systems that help resist summer water stress have been proposed as a relevant trait for vegetative persistence of perennial temperate forage species growing in subtropical climates or under future climatically challenging scenarios. In a previous study [Jauregui
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Enhancing wheat yield and nitrogen use efficiency in the Huang-Huai-Hai region of China: Insights from root biomass and nitrogen application responses J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-01-16 Tiantian Huang, Maoxue Zhang, Pengfei Dang, Wen Wang, Miaomiao Zhang, Yanyu Pan, Xiaoping Chen, Yuncheng Liao, Xiaoxia Wen, Xiaoliang Qin, Kadambot H. M. Siddique
Wheat yield and nitrogen use efficiency (NUE) have improved simultaneously with the genetic development of wheat varieties. However, wheat selection is carried out routinely in N-rich field conditions, with breeding progress limited under low soil available nitrogen. Thus, we performed a 2-year field investigation using eight milestone winter wheat varieties released between 1947 and 2017 in the Huang-Huai-Hai
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Leaf photosynthetic performance is not a key factor affecting grain yield in spring wheat subjected to heat and combined heat and drought stresses J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-01-16 Søren Gjedde Sommer, Xiangnan Li, Eva Rosenqvist, Fulai Liu
The yield traits and physiological responses of three wheat genotypes were studied when subjected to heat and combined heat and drought stress at anthesis under either aCO2 (400 ppm) or eCO2 (800 ppm) in a greenhouse. The heat treatment was 7-days at day/night 35/28°C, and the combined heat and drought was withholding irrigation from the heat-stressed plants until the photosynthetic rate reached <5 μmol m−2 s−1
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Response to heat stress and glutenins allelic variation effects on quality traits in durum wheat J. Agron. Crop Sci. (IF 3.5) Pub Date : 2024-01-16 Facundo Tabbita, Karim Ammar, María Itria Ibba, Francisco Andrade, Marco Maccaferri, Maria Corinna Sanguineti, Roberto Tuberosa, Carlos Guzmán
In the context of climate change, high temperature is one of the main abiotic stresses hampering durum wheat production. Through the characterization of an international panel of 271 genotypes, this study investigates the effects of heat stress on quality traits and identifies which glutenins (Glu-1, Glu-2 and Glu-3 loci) alleles are the most important to obtain high gluten strength under optimal and
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Saving the Vietnamese Mekong River Delta—People's attitudes, opinions and willingness to help J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-11-27 Michael Ahlheim, Duy Thanh Vuong
The unique nature and environment of the Vietnamese Mekong Delta as well as its agricultural production and its traditional lifestyle are endangered by a rising sea level and increasing salinization of the ground and surface water. This paper aims at the assessment of Vietnamese people's information on and attitudes towards these problems as well as their respective convictions and beliefs. Imbedded
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Traits contributing to salinity tolerance in rice genotypes from the Mekong Delta J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-11-23 Kristian Johnson, Duy Hoang Vu, Folkard Asch
Increasing sea level rise and subsequent salinization in mega deltas, such as the Vietnamese Mekong Delta (VMD), pose a risk to rice (Oryza sativa L.) production during the dry season. This study investigated the salinity resistance of a selection of common rice genotypes from the VMD along with an international check, IR64. The 20 rice varieties were grown hydroponically for 5 weeks in a greenhouse
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Drought resistance, quality characteristics and water-yield relationships of some wheat (Triticum aestivum L.) lines and varieties J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-11-23 Mualla Keten Gokkuş, Ziya Dumlupinar, Hasan Degirmenci
The aim of this study was to determine the drought tolerance of four different genotypes, including two wheat varieties (Ceyhan 99 and Sagittario) and two wheat lines (Zdeb101 and Zdeb102), and create irrigation schedules. This study was performed with treatments applied at three irrigation levels (S100: treatment where the entire water need of the plant was met, S50: 50% of the water provided in the
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Drought affects the synchrony of aboveground and belowground phenology in tropical potato J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-31 Julia Hoelle, Awais Khan, Folkard Asch
The literature describes the belowground and aboveground phenology of potato to be linearly related. Bud formation is synchronous with tuber initiation and flowering with tuber filling. Many agronomic and breeding studies on potato use non-destructive aboveground phenology to assess belowground development. No information is currently available on the influence of water deficit on the synchrony of
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Identification of key responsive leaf physiochemical traits for ozone sensitivity in 16 Italian cultivars of Triticum durum subjected to peak concentrations J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-18 Valentina Picchi, Samuele Risoli, Cristina Nali, Giacomo Lorenzini, Lorenzo D'Asaro, Claudia Pisuttu, Elisa Pellegrini
Plants of 16 Italian cultivars of durum wheat at the tillering stage were exposed to a single pulse of ozone (O3, 200 ppb, 5 h) to reveal the mechanisms explaining their O3 tolerance/sensitivity by considering some leaf physiochemical traits [e.g., stomatal conductance, photosystem II (PSII) efficiency, antioxidant enzyme activity, and phytohormone synthesis]. At the end of the recovery period (48 h
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Evaluating topsoil salinity via geophysical methods in rice production systems in the Vietnam Mekong Delta J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-18 Van Hong Nguyen, Jörn Germer, Folkard Asch
The Vietnam Mekong Delta (VMD) is threatened by increasing saltwater intrusion due to diminishing freshwater availability, land subsidence, and climate change induced sea level rise. Through irrigation, saltwater can accumulate in the rice fields and decrease rice production. The study aims at evaluating topsoil salinity and examining a potential link between topsoil salinity and rice production systems
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Holistic approach to ascertain genetic variability and responsive trait selection for different heat regimes of central India via field screening of wheat recombinant inbred lines J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-13 Vikrant Khare, Rama Shankar Shukla, Sanjay Kumar Singh, Suneeta Pandey
High temperature affects wheat yield severely. This study aimed to explore the variation and recognition of heat responsive traits, to enhance wheat productivity in high temperature stress condition. The recombinant inbred lines were developed by crossing of released wheat variety MACS2496 (heat sensitive) and WH730 (heat tolerant). The experiments were conducted into 2 years at three locations of
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Ion uptake and distribution in sweet potato genotypes subjected to salt stress is not driven by transpiration J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-10 Shimul Mondal, Ebna Habib Md Shofiur Rahaman, Folkard Asch
Potassium is taken up actively by the plant, whereas sodium is often either competing for the same uptake mechanisms or uptake and distribution are driven by the transpirational volume flow in the shoots of plants grown under salinity. Reducing transpiration rate is regarded as an adaptation mechanism to reduce leaf tissue salt load. In combination with a high K uptake, plants may be able to maintain
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Suitability of the stress severity index combined with remote-sensing data as a tool to evaluate drought resistance traits in potato J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-05 Julia Hoelle, Folkard Asch, Awais Khan, Merideth Bonierbale
Potato is a drought susceptible crop and even short drought spells reduce tuber yields notably. In an earlier study we developed a stress severity index (SSI) based on the development stage of a genotype at the onset of drought and the soil water deficit based on soil water tension. Here, we test the suitability of the SSI combined with remotely sensed data as a screening tool to select drought-tolerant
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Physiological, transcriptional and metabolomic evidence for arbuscular mycorrhizal fungi and Lactobacillus plantarum in peanut resistance to salinity stress J. Agron. Crop Sci. (IF 3.5) Pub Date : 2023-10-04 Tong Si, Jinhao Lu, Yidan Cao, Zhaohui Tang, Dunwei Ci, Xiaona Yu, Xiaojun Zhang, Yuefu Wang, Xiaoxia Zou
Arbuscular mycorrhizal fungi (AMF) and Lactobacillus plantarum (LP) play pivotal roles in plant salinity resistance; however, difficulties are still exist in ascertaining their synergistic effects in counteracting legume soil salinity. Here, two peanut cultivars (salt-tolerant and salt-sensitive) were subjected to salinity stress, and the alleviation effects of combined microbial agent (CMA, inoculation
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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