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Effect of nitrogen fixation enhancing type SEN1 gene on soybean growth Plant Prod. Sci. (IF 2.5) Pub Date : 2024-03-09 Aya Shimomura, Yuki Nishida, Shion Yamamoto, Norio Suganuma, Satoshi Watanabe, Toyoaki Anai, Susumu Arima, Akiyoshi Tominaga, Akihiro Suzuki
It is well known that the growth of legumes is greatly affected not only by fertilizer nitrogen but also by fixed nitrogen by symbiosis with rhizobia. We have reported that a polymorphism in SEN1, ...
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Genetic variation in heading dates and phenological parameters of Myanmar rice Plant Prod. Sci. (IF 2.5) Pub Date : 2024-02-18 Moe Moe Hlaing, Yoshiyuki Yamagata, Tomoyuki Furuta, Khin Thanda Win, Ohm Mar Saw, Akinori Ozaki, Hideshi Yasui, Atsushi Yoshimura
Genetic variation in heading dates is essential for developing a rational rice cultivation program, optimizing irrigation practices, and advancing plant breeding in year-round irrigated environment...
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Enhancing initial growth of transplanted rice under phosphorus deficiency: combined effects of tillering quantitative trait locus and P-dipping technique Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-31 Toshiyuki Takai, Aung Zaw Oo, Yasuhiro Tsujimoto
Phosphorus (P) deficiency severely constrains rice production in sub-Saharan Africa. Previous studies showed that P-dipping, involving localized application of P near the root zone, and MP3, a natu...
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Effects of maize plant type and row spacing on the field microclimate and yield of intercropping ginger Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-25 Bao Shuqin, Qiang Li, Yun Ren, Lin Shi, Xixi Dong, Xingying Chai, Liu Jing
To explore field microclimate changes under maize/ginger intercropping and select a reasonable field configuration, this study used the major ginger variety ‘Zhugen’ from Southwest China as the exp...
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Solute contributions to osmotic adjustment in leaf segments of wheat (Triticum aestivum L.) exposed to polyethylene glycol-induced water deficit Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-18 Song Ai Nio, Daniel P.M. Ludong, Tina L. Botwright Acuna, Len J. Wade
This study examined osmotic adjustment (OA) and solutes accumulated in leaf segments of wheat cultivar Hartog exposed to polyethylene glycol (PEG)-induced water deficit (WD) in laboratory experimen...
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Comparison of soybean crop performance under tropical environment between tropical and temperate cultivars with adjusted growth duration Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-09 Yuichi Nagasaki, Andy Saryoko, Iskandar Lubis, Koki Homma, Tomoyuki Katsube-Tanaka, Tatsuhiko Shiraiwa
Considerable variation among soybean genotypes has been observed in growth and yield adaptations to tropical environments. However, the response to daylength and, hence, different growth durations ...
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Yield and dry matter production of soybean response to late planting in southwestern Japan Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-07 Yohei Kawasaki, Ryo Yamazaki, Satoshi Nakano, Hideo Hamaguchi
The selection of the sowing date is one of the most important decisions in soybean production. It is important for farmers to know the expected seed yield when developing a sowing plan. The objecti...
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Palatability characteristics of recent local-brand-rice cultivars Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-07 Yuji Matsue, Chinatsu Moriwaki, Shimako Abe, Shoichi Ito
This study was carried out to clarify the actual eating quality of 33 recent cultivars of local-brand-rice and the relationship between overall eating-quality, physicochemical properties, and rice ...
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Improving efficiency of ground-truth data collection for UAV-based rice growth estimation models: investigating the effect of sampling size on model accuracy Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-04 Tomoaki Yamaguchi, Kana Sasano, Keisuke Katsura
One of the bottlenecks in the development of UAV-based crop growth estimation models has been the need for ground-truth data collection through plant sampling. Thus, we investigated the viability o...
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Genotypic variations in phosphorus accumulation in wild cowpea relatives (Vigna vexillata) grown under phosphorus deficiency Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-04 Kanako Takada, Tomohiro Nishigaki, Yasuhiro Tsujimoto, Kohtaro Iseki
Vigna vexillata is a wild cowpea relative inhabiting tropical and subtropical regions. Because phosphorous (P) deficient soils are widely found in these regions, such wild relatives may have an abi...
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Ultra-fine bubble irrigation promotes coffee (Coffea arabica) seedling growth under repeated drought stresses Plant Prod. Sci. (IF 2.5) Pub Date : 2024-01-02 Yoshihiro Hirooka, Maho Motomura, Morio Iijima
Coffee plants are likely to be highly susceptible to changes in climate, and several statistical studies based on projections of altered precipitation patterns have predicted negative effects on co...
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Effects of shading, soil moisture, fertilizations and sowing time on isoflavone content of soybean seed in Hokkaido Plant Prod. Sci. (IF 2.5) Pub Date : 2023-11-29 Hideki Kurosaki, Shigekazu Koyano, Satoshi Aoyama
Aiming to produce soybean seeds with high yield and high isoflavone content in Hokkaido, which has cool weather, we evaluated the effects of shading, soil moisture, fertilizations (K,N,P,Mo) and so...
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Comprehensive assessment of the agronomic, environmental and economic benefits effects of nitrogen fertigation management on maize in Northeast China Plant Prod. Sci. (IF 2.5) Pub Date : 2023-11-29 Qian Li, Jingchao Yuan, Zhiquan Liu, Yubo Qin, Meng Wang, Lili Kong, Chen Xu, Caixia Yin
Seeking economical, efficient and environmentally friendly nitrogen fertigation management strategies is extremely important for sustainable maize production. A two-year field experiment was conduc...
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Large-eddy simulation of cultivated fields with Cyperus malaccensis Lam Plant Prod. Sci. (IF 2.5) Pub Date : 2023-11-29 Moe Shiraishi, Hiroaki Hayashi, Hiroaki Shimada, Shin-Ichi Satake
In this study, the honami phenomenon in Cyperus malaccensis Lam. was reproduced to establish a simulation technique that can accurately reproduce the waves of it and predict the wind flow over it a...
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Green waste-derived compost (GWC) alleviates drought stress and promotes sugar beet productivity and biofortification Plant Prod. Sci. (IF 2.5) Pub Date : 2023-11-29 Nahaa M. Alotaibi, Amr M. El-Darder, Mohammed A. Alfurayji, Salah Fatouh Abou-Elwafa
Green waste-derived compost (GWC) is a valuable soil amendment for improving soil organic matter and decreasing waste products and potential pollutants. The study was carried out to evaluate the ef...
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Comparison of root dry matter content and root dry matter weight in sweet potato genotypes cultivated by transplanting and direct planting Plant Prod. Sci. (IF 2.5) Pub Date : 2023-11-29 Takeo Sakaigaichi, Keisuke Suematsu, Yukari Kawata, Akira Kobayashi, Erika Kamada, Yumi Kai
Direct planting (i.e. the planting of seed roots) can reduce the labor requirements of sweet potato (Ipomoea batatas (L.) Lam.) cultivation. To broaden the breeding material for high dry matter pro...
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Early ground rolling is highly effective in delaying spikelet initiation in early-sown spring wheat Plant Prod. Sci. (IF 2.5) Pub Date : 2023-09-03 Akina Mizumoto, Masahiko Tanio, Kou Nakazono, Kazuhiro Watanabe, Akira Uchino, Tetsushi Azuma
Ground rolling delays spikelet initiation and thus would be expected to reduce frost injury in early-sown spring wheat. To characterize the relationship between the timing of rolling and the delay ...
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Effects of arbuscular mycorrhizal fungi inoculation on infection and growth of rice and pearl millet in upland fields with three water regimes Plant Prod. Sci. (IF 2.5) Pub Date : 2023-08-29 Y Phoura, Ryo Ohtomo, Hiromi Nakanishi, Akihiko Kamoshita
Inoculation with arbuscular mycorrhizal fungi (AMF) may enhance crop growth in upland fields, depending on the water regime. To quantify changes in AMF infection rate and subsequent effects on nutr...
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Differences in Fe toxicity response index and associated growth characteristics among rice genotypes Plant Prod. Sci. (IF 2.5) Pub Date : 2023-08-29 Haruka Aratani, Indrastuti A. Rumanti, Yudhistira Nugraha, Takehiro Kamiya, Yuji Yamasaki, Yoichiro Kato
Acid sulfate soils in tropical coastal rice areas contain high Fe levels, and excess ferrous (Fe2+) ions are released during the early growth stage in the wet season. In such environments, Fe toxic...
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Increasing lowland rice yields of smallholder farmers through the adoption of good agricultural practices in the forest agro-ecological zone of Ghana Plant Prod. Sci. (IF 2.5) Pub Date : 2023-08-28 Benedicta Essel Ayamba, Mohammed Moro Buri, Ephraim Sekyi-Annan, Krishna Devkota, Elliott R. Dossou-Yovo, Ophelia Osei Ulzen, Eric Owusu Adjei, Mohammed Musah, Nathaniel Biney
Rice is an important food crop in Ghana. However, its production has constantly been below 40% of the demand, and most of the requirements meet from imports. Such low production level is largely at...
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Barley varieties tolerant to waterlogged reduced soil show the better root growth in hypoxia Plant Prod. Sci. (IF 2.5) Pub Date : 2023-08-13 Tomomi Abiko, Takatomo Todoroki, Huyen Pham Thi Thanh, Tetsuhiro Nakamura, Yuhi Haraguchi, Tsuyoshi Tanaka, Daisuke Saisho, Hiroomi Kai
Barley (Hordeum vulgare L.) growth is often inhibited under waterlogged fields. Under waterlogging, a higher C/N ratio in soil easily leads to low oxygen concentration and soil reduction. Although ...
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Contribution of genes related to grain number (Gn1a and WFP) introgressed into NERICA 1 to grain yield under tropical highland conditions in central Kenya Plant Prod. Sci. (IF 2.5) Pub Date : 2023-08-08 Mayumi Kikuta, Daniel Makori Menge, Emily Waringa Gichuhi, Hiroaki Samejima, Rena Tomita, John Munji Kimani, Ruth Nzisa Musila, Kazuyuki Doi, Motoyuki Ashikari, Rosalyn Angeles-Shim, Kshirod Kumar Jena, Daigo Makihara
ABSTRACT In Kenya and many other African countries, improving rice productivity is vital for future food security. To improve rice productivity in Kenya, near-isogenic lines (NIL) were developed by introducing Gn1a and WFP, genes that function to increase grain number per panicle by increasing secondary and primary rachis-branches, into NERICA 1, a registered variety in Kenya. The aim of this study
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Status quo and challenges of rice production in sub-Saharan Africa Plant Prod. Sci. (IF 2.5) Pub Date : 2023-08-03 K. Saito, K. Senthilkumar, E. R. Dossou-Yovo, I. Ali, J-M. Johnson, G. Mujawamariya, J. Rodenburg
ABSTRACT Rice production in sub-Saharan Africa (SSA) has increaed ten-fold since 1961, whereas its consumption has exceeded the production and the regional self-sufficiency rate is only 48% in 2020. Increase in rice production has come mainly from increased harvested area. Yield increase has been limited and the current average yield in SSA is around 2 t ha−1. This paper aims to provide the status
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Estimation of grain quality of rice (Oryza sativa L.) by UAV-acquired vegetation index and climate factors Plant Prod. Sci. (IF 2.5) Pub Date : 2023-07-24 Tadashi Tsukaguchi, Teruki Miyamae, Ami Morikawa, Ryota Yonezawa, Daiki Sekine, Yoichi Fujihara
ABSTRACT We aimed to associate unmanned aerial vehicle – acquired vegetation index (VI) with the percentage of several kinds of imperfect grains and grain protein content (GPC) for use as an indicator of rice grain quality. The cultivars ‘Koshihikari’ and ‘Ishikawa 65’ were grown in the field from 2019 to 2022 at various N application rates. From 20 days before heading to 10 days after heading, the
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Rice plants exhibit increased chilling tolerance and oligosaccharide production after acclimation Plant Prod. Sci. (IF 2.5) Pub Date : 2023-07-17 Yoshiyuki Sagehashi
ABSTRACT Tolerance to low temperatures can be enhanced in plants acclimated to low but harmless temperatures. This study examined chilling survival (4°C for 10 days) in 10-day-old Hokkaido rice cultivar seedlings following an initial acclimation at 12°C for five days. In addition, the effect of acclimation on changes in soluble sugar content in shoot tissue was examined. Acclimation resulted in 88–100%
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Effects of knockout of CO2-responsive CCT protein, a regulator of starch synthesis on physiological characteristics of rice Plant Prod. Sci. (IF 2.5) Pub Date : 2023-07-06 Fumihiro Miyagawa, Naoki Shibatani, Ryutaro Morita, Daisuke Sasayama, Tomoko Hatanaka, Tetsushi Azuma, Hiroshi Fukayama
ABSTRACT CO2-Responsive CCT Protein (CRCT) is suggested to be a positive regulator of starch synthesis-related genes in the vegetative organs of rice. To investigate the physiological function of CRCT, we produced CRCT knockout lines by CRISPR/Cas9 system. CRCT knockout tended to slightly reduce photosynthetic performance and had some adverse effects on growth parameters such as tiller number and straw
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Responses of soybean, Glycine max (L.) Merr. to dolomite and calcite fertilization in an upland field converted from a paddy field Plant Prod. Sci. (IF 2.5) Pub Date : 2023-07-04 Akira Takamoto, Tomoki Takahashi, Kazuki Togami, Ai Hishinuma
ABSTRACT Dolomite [CaMg(CO3)2] is used widely for soybean, Glycine max (L.) Merr. production in Japan to amend soil pH, although magnesium (Mg) in the dolomite can inhibit soybean growth and yield. The aim of this study was to determine the effect of Mg on soybean production in a paddy – upland rotation field in 2019–2020 by comparing the application of dolomite and calcite (CaCO3). The field test
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Effect of flood and drip irrigation and difference of previous crop residue input on morphological and physiological traits in rice root Plant Prod. Sci. (IF 2.5) Pub Date : 2023-07-04 Jiabin Bian, Masanori Toyota, Masahiro Morokuma
ABSTRACT Detailed information on the root system under drip irrigation will help in more efficient irrigation scheduling. Although input of previous crop residues is effective in increasing soil fertility, little is known about its effect on the root system. This study aimed to investigate the effects of irrigation methods (drip or flood) and different management of previous crop residues on root morphological
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Estimation of sink capacity of rice grains: A comparison of calculation methods based on 1000-grain weight and grain projected area Plant Prod. Sci. (IF 2.5) Pub Date : 2023-06-27 Masaki Okamura, Ryutaro Morita, Yumiko Arai-Sanoh, Hiroe Yoshida, Hiroshi Nakagawa, Naohiro Aoki
ABSTRACT Accurate estimation of sink capacity in rice (grain number × potential grain size), independent of grain filling, is necessary for considering source – sink interactions. However, how to measure potential grain size is still a matter of debate. Here, we investigated the effect of modifying the grain-filling environment on 1000-grain weight of grains screened by specific gravity or brown rice
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Effects of exogenous strigolactone on growth, dry matter accumulation, and yield of tissue-cultured ginger Plant Prod. Sci. (IF 2.5) Pub Date : 2023-06-19 Xixi Dong, Yun Ren, Cai Chen, Guoqing Sun, Youqun Zhou, Yanglin Shi, Qiang Li
ABSTRACT Ginger tissue culture seedlings can reduce the incidence of soil-borne diseases. However, they have several branches, small ginger bulbs, and slow seed recovery. Strigolactone can inhibit the growth of lateral buds, adjust plant types, and increase crop yield. This study used exogenous strigolactone to treat tissue-cultured ginger and assess its effects on growth, dry matter accumulation,
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On-farm agronomic manipulations to improve rice (Oryza sativa L.) production in the saline coastal zone of the Red River Delta in Vietnam Plant Prod. Sci. (IF 2.5) Pub Date : 2023-05-25 Phan Luyen, Akihiko Kamoshita
ABSTRACT Sporadic salinity caused by seawater intrusion is a serious concern for rice (Oryza sativa L.) production in the Red River Delta (RRD) of Vietnam, and guidance for on-farm agronomic management is needed. Three sets of on-farm experiments – namely, trials of (1) nitrogen (N) fertilizer use (replicated trials and surveys of farmer fields, including plots receiving zero N), (2) resistant varieties
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Biomass estimation of World rice (Oryza sativa L.) core collection based on the convolutional neural network and digital images of canopy Plant Prod. Sci. (IF 2.5) Pub Date : 2023-05-13 Kota Nakajima, Yu Tanaka, Keisuke Katsura, Tomoaki Yamaguchi, Tomoya Watanabe, Tatsuhiko Shiraiwa
ABSTRACT Above-ground biomass (AGB) is an important indicator of crop productivity. Destructive measurements of AGB incur huge costs, and most non-destructive estimations cannot be applied to diverse cultivars having different canopy architectures. This insufficient access to AGB data has potentially limited improvements in crop productivity. Recently, a deep learning technique called convolutional
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Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield Plant Prod. Sci. (IF 2.5) Pub Date : 2023-05-10 Noriko Kanno, Ricardo Garcia, Roel R. Suralta, Aurora M. Corales, Crisanta S. Bueno, Niño P.M.C Banayo, Pompe C. Sta. Cruz, Virender Kumar, Yoichiro Kato
ABSTRACT Dry direct seeding of rice (DDSR) is being increasingly used in water-scarce areas across Asia. When drought occurs, deep sowing may enable germinating seeds to utilize the residual moisture below the surface. Our objective was to examine the effects of different sowing depths on DDSR crop growth. Two yield experiments, one in the Philippines and the other in Japan, were established in rainfed
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Rapid evaluation of leaf photosynthesis using a closed-chamber system in a C4 plant, sugarcane Plant Prod. Sci. (IF 2.5) Pub Date : 2023-05-08 Hiroo Takaragawa, Hiroshi Matsuda
ABSTRACT To accelerate research on improving sugarcane biomass production, a rapid phenotyping method for individual leaf photosynthetic rates is required. Recently, a closed-type measurement system, which is faster, lighter, and less expensive than conventional open-type systems, has been developed and utilized for C3 crops. For future utilization of the system in phenotyping photosynthetic rates
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Variation in antioxidant capacity of the seven azuki bean (Vigna angularis) varieties with different seed coat color Plant Prod. Sci. (IF 2.5) Pub Date : 2023-05-02 Norio Nagao, Yuichi Sakuma, Tatsuaki Funakoshi, Tomio Itani
ABSTRACT Azuki bean (Vigna angularis) is a small red bean commonly used in Japanese cuisine from ancient time. The most common azuki bean seed is red, but there are black, grey, brown, green, straw-colored, white, and various flecked varieties. We evaluated the total antioxidant capacity and phytochemical phenolics profiles of seven azuki bean varieties in relation to their seed coat color according
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Source and sink traits and their relationship under deficit soil moisture stress conditions in an indeterminate crop: sesame (Sesamum indicum L.) Plant Prod. Sci. (IF 2.5) Pub Date : 2023-04-23 Gopika Karnan, Ratnakumar Pasala, Brij B Pandey, Manikanta ChLn, Ramya Kt, Rathnakumar Al, Arti Guhey
ABSTRACT Sesame is an indeterminate oilseed crop where yield is determined by source and its capacity for synthesis and mobilization of photosynthates. Knowledge of the existing relation between source and sink and its validation under deficit soil moisture conditions is limited in sesame. Therefore, experiments were conducted using 25 sesame genotypes with differing plant architecture in terms of
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Effects of waterweed compost derived from Lake Biwa on Komatsuna (Brassica rapa var. perviridis) growth Plant Prod. Sci. (IF 2.5) Pub Date : 2023-04-05 Tesshu Tamai, Daisuke Yoshimura, Michitoshi Yamaguchi, Kenichi Wakita
ABSTRACT In Lake Biwa, located in Shiga Prefecture, Japan, the overgrowth of waterweeds has become a significant environmental and human-life problem. Therefore, the waterweeds are systematically harvested and composted. In order to consider the effective use of waterweed compost for carbon neutrality and resource recycling, we clarified the characteristics of the waterweed compost by cultivation experiments
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Evaluation of the susceptibility to green stem disorder in soybeans [Glycine max (L.) Merr.] with vegetative storage protein accumulation Plant Prod. Sci. (IF 2.5) Pub Date : 2023-03-31 Jiuning Zhang, Tatsuhiko Shiraiwa, Tomoyuki Katsube-Tanaka
ABSTRACT Green stem disorder (GSD) is an important agronomical problem in soybean production because it delays leaf and stem senescence and complicates the harvest. However, a rapid and precise diagnosis of GSD has not yet been established. In this study, the effect of depodding on GSD and vegetative storage protein (VSP) accumulation was investigated in GSD-susceptible cultivar ‘Tachinagaha (Tc)’
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Simplified estimation of branching plasticity of soybean cultivars in relation to planting density by branch development in the row with the gradient of distance between plants and after pinching Plant Prod. Sci. (IF 2.5) Pub Date : 2023-03-24 Taiki Yoshihira, Haruka Suzuki, Toshiki Matsui, Song Liang, Tatsuhiko Shiraiwa
ABSTRACT The branching plasticity of soybean, i.e. its ability to adjust branch development to planting density, differs among cultivars. Field experiments are required to measure the degree of branching plasticity, but such experiments require a great deal of time and labor, and it is difficult to analyze and compare a large number of cultivars. A simple evaluation method needs to be established to
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Nitrogen uptake pattern of dry direct-seeded rice and its contribution to yields in northeastern Japan Plant Prod. Sci. (IF 2.5) Pub Date : 2023-03-06 Mari Namikawa, Takayuki Yabiku, Maya Matsunami, Toshinori Matsunami, Toshihiro Hasegawa
ABSTRACT Dry direct-seeded rice (DDSR) cultivation is expected to reduce production costs compared with transplanted rice (TPR); however, its low N use efficiency (NUE) has hindered cost reduction. We conducted DDSR field experiments for 3 years using a standard cultivar (‘Akitakomachi’) and a high-yielding cultivar (‘Yumiazusa’) grown with a single application of coated urea (CU) or split applications
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Monitoring spatial and time-series variations in red crown rot damage of soybean in farmer fields based on UAV remote sensing Plant Prod. Sci. (IF 2.5) Pub Date : 2023-02-19 Shuhei Yamamoto, Shuhei Nomoto, Naoyuki Hashimoto, Masayasu Maki, Chiharu Hongo, Tatsuhiko Shiraiwa, Koki Homma
ABSTRACT Red crown rot (RCR) is a soil-borne disease that damages soybean growth and decreases yield. Infected plants show earlier defoliation and pencil-like roots, sometimes resulting in mortality. This disease became common relatively recently, and information about its field-scale appearance is insufficient. Insufficient data is a major constraint when planning countermeasures. In this study, unmanned
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Analysis of vegetative storage protein accumulation in soybean cultivars expressing different green stem disorder severity affected by soil moisture change Plant Prod. Sci. (IF 2.5) Pub Date : 2023-01-30 Jiuning Zhang, Tatsuhiko Shiraiwa, Tomoyuki Katsube-Tanaka
ABSTRACT Green stem disorder (GSD), characterized by delayed stem senescence during seed maturation, complicates harvesting in soybean production. Although GSD is associated with a sink – source imbalance, a rapid and precise evaluation of GSD has not been established. In sink-limited soybean plants, vegetative storage protein (VSP) accumulates. In this study, pot and field experiments were conducted
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Physiological and morphological factors affecting leaf sheath reinforcement and their contribution to lodging resistance in rice Plant Prod. Sci. (IF 2.5) Pub Date : 2023-01-01 Tomohiro Nomura, Satoshi Ohkubo, Atsushi J. Nagano, Ahmad Fahim Samadi, Shunsuke Adachi, Taiichiro Ookawa
ABSTRACT In rice (Oryza sativa L.), leaf sheaths enhance stem strength and lodging resistance. However, little is known about the factors that affect varietal differences and changes over time regarding leaf sheath reinforcement. In the present study, the morphological and physiological traits that are presumed to be related to leaf sheath reinforcement were examined in ‘Chugoku 117’ and ‘Koshihikari’
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Deepwater response in the African cultivated rice Oryza glaberrima Plant Prod. Sci. (IF 2.5) Pub Date : 2023-01-01 Quanshu Luo, Daisuke Sasayama, Misaki Nakazawa, Tomoko Hatanaka, Hiroshi Fukayama, Tetsushi Azuma
ABSTRACT Partial submergence of Oryza sativa deepwater rice elicits enhancement of internodal elongation, referred to as deepwater response, conferred by three types of genes, SNORKEL1/2 (SK1/2), SEMIDWARF1 (SD1), and ACCELERATOR OF INTERNODE ELONGATION 1 (ACE1). We investigated the presence and expression of these genes in the African cultivated rice Oryza glaberrima and the relationship between these
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Localized phosphorus application via P-dipping is more effective for improving initial rice growth in lower temperature conditions Plant Prod. Sci. (IF 2.5) Pub Date : 2022-12-21 Aung Zaw Oo, Yasuhiro Tsujimoto
ABSTRACT P-dipping is a practical approach for smallholder farmers to increase lowland rice yields with minimal fertilizer inputs by coating seedling roots with P-enriched slurry at transplanting. The effect of such localized application increases by concentrating more nutrients near the roots; however, this also increases the risk of salt stress known as fertilizer burning. The study aimed to identify
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Yield potentials of improved rice varieties for increased lowland rice production within the mankran watershed in Ghana Plant Prod. Sci. (IF 2.5) Pub Date : 2022-12-16 Ophelia Osei Ulzen, Mohammed Moro Buri, Ephraim Sekyi-Annan, Krishna Prasad Devkota, Elliott Ronald Dossou-Yovo, Benedicta Essel Ayamba, Eric Owusu Adjei
ABSTRACT Rice production in Ghana is limited by low varietal choices, which puts farmers at a disadvantage in meeting the market demand for consumers. The objectives of this study were to (i) assess the yield potentials of improved rice varieties developed by the Africa Rice Center (AfricaRice), and (ii) to allow farmers to select improved varieties of their choice based on growth and yield, as observed
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Effect of foliar-applied Euphorbia hirta towards controlling bacterial diseases in tomato crops and enhancing fruit yield and shelf life Plant Prod. Sci. (IF 2.5) Pub Date : 2022-12-15 Varun Kusampudi, Shilpa Kusampudi, B. S. Lakshmi
ABSTRACT Bacterial diseases are a major cause of yield loss in tomato plants worldwide, and there is a need to identify strategies for control of these diseases. Bacterial wilt caused by Ralstonia solanacearum (RS) and bacterial spot caused by Xanthomonas axonopodis pv vesicatoria (Xav) are amongst the bacterial diseases affecting tomato crops. The current study investigates Euphorbia hirta (E. hirta)
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Identification of chromosome regions for high-temperature tolerance in the japonica rice cultivar ‘Genkitsukushi’ (Oryza sativa L.) Plant Prod. Sci. (IF 2.5) Pub Date : 2022-12-15 Katsunori Miyahara, Takuya Wada, Shuichi Fukuoka, Masayuki Miyazaki, Osamu Yamaguchi, Masafumi Ishibashi, Motohiko Kondo, Norimitsu Hamaoka, Yushi Ishibashi
ABSTRACT Degradation of the appearance of rice grains due to high temperatures during ripening is a serious problem being worsened by global warming. QTLs for tolerance to high temperature during ripening must be identified in order to develop new cultivars efficiently. Here, we developed recombinant inbred lines (RILs) from crosses between the high-temperature-tolerant ‘Genkitsukushi’ and the hig
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The impact of phytochemical, morpho-physiological, and biochemical changes of Lallemantia royleana (Benth.) on drought tolerance Plant Prod. Sci. (IF 2.5) Pub Date : 2022-12-01 Hoda Shams, Heshmat Omidi, Mehdi Seif Sahandi
ABSTRACT Water deficiency is the most prominent constraint for crop production worldwide which is exacerbated by climate change. Developing drought-resistant species is a cost-effective solution to resolve the water lack problems in arid and semi-arid regions. A two-year study was conducted with the aim of developing the cultivation of Lallemantia royleana drought-resistant ecotypes in desert climates
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Plantain hybrids for the humid forest agroecology of Central Africa – diseases and pests load, fruit yield and farmers perception Plant Prod. Sci. (IF 2.5) Pub Date : 2022-11-01 Jules Appolinaire Lienou, Sergine Ngatat, Samuel Nanga Nanga, Armand Rodrigue Pascal Doumtsop Fotio, Albert Abang Fomumbod, Apollin Fotso Kuate, Komi K. Mokpokpo Fiaboe, Cletus Fonbah, Francis Ngome Ayebesone, Emmanuel Njukwe, Abdou Tenkouano, Rachid Hanna
ABSTRACT Plantain is one of the major staples contributing to food security and income generation in West and Central Africa. Local cultivars in Cameroon are susceptible to pests and diseases causing severe losses in plantain production. This study aimed at evaluating the agronomic performance and producer’s perception of plantain hybrids in the humid forest of Cameroon. Field trials were established
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Genotype by Environment Interaction and Yield Stability of Coffee (Coffea arabica L.) Genotypes Evaluated in Western Ethiopia Plant Prod. Sci. (IF 2.5) Pub Date : 2022-10-30 Getachew Weldemichael Abrha, Sentayehu Alamerew Kebede, Leta Tulu Bedada, Gezahegn Berecha Yadessa, Asfaw Adugna Gutu
ABSTRACT The performance of genotypes under diverse environments can be used to determine their adaptability and stability. However, information on the performance of coffee genotypes in various environmental conditions is limited. Thus, this study’s objectives were to estimate genotype by environment interaction (GEI), evaluate the mean performance and stability of 16 fruity flavored coffee genotypes
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Ground rolling delays apical development and reduces frost injury in early-sown spring wheat Plant Prod. Sci. (IF 2.5) Pub Date : 2022-10-20 Akina Mizumoto, Masahiko Tanio, Kazuhiro Watanabe, Kou Nakazono, Akira Uchino, Tetsushi Azuma
ABSTRACT Frost injury is a concern in early-sown spring wheat (Triticum aestivum) in the Tokai region of Japan. To assess the efficacy of ground rolling as a technique for avoiding frost injury, we investigated its effects on the apical development and yield of ‘Ayahikari’ spring wheat. In both 2018–19 and 2019–20, rolling delayed spikelet initiation by 4–5 days, the start of internode elongation by
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A near-isogenic line for spikelet number in rice with a genetic background of IR64 under various fertilizer conditions Plant Prod. Sci. (IF 2.5) Pub Date : 2022-10-20 Kazuhiro Sasaki, Mitsuhiro Obara
ABSTRACT The total spikelet number (TSN) per panicle is an essential factor involved in grain yield among yield components in rice. IR64-NIL12 carrying qTSN12.2-YP4, which was detected on chromosome 12 for TSN per panicle, has been developed in a previous study. It is important to characterize the environment of gene function to increase yields. Thus, we attempted to evaluate IR64-NIL12 grown under
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Exogenous calcium fertilizer supplementation regulates production period in djulis (Chenopodium formosanum Koidz.) Plant Prod. Sci. (IF 2.5) Pub Date : 2022-10-11 Ci Fu Jhang, Laurence Shiva Sundar, Hong Bin Wu, Yun-Yang Chao
ABSTRACT In this study, red and yellow varieties of djulis (Chenopodium formosanum Koidz) were cultivated in spring and autumn, and the effects of calcium carbonate treatment on their growth traits, antioxidant capacity, and grain maturation were examined. This study showed that calcium carbonate treatment increased the plant height and stem thickness in the red variety of djulis. The treatment also
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Eggshell powder as calcium source on growth and yield of groundnut (Arachis hypogaea L.) Plant Prod. Sci. (IF 2.5) Pub Date : 2022-09-13 Ngoc-Thang Vu, Thai-Hoang Dinh, Thi-Tuyet-Cham Le, Thi-Thuy-Hang Vu, Thi-Thu-Thuy Nguyen, Tuan-Anh Pham, Ngoc-Lan Vu, Shimo Koji, Shugo Hama, Il-Seop Kim, Dong-Cheol Jang, Dea-Hoon Kim, Anh-Tuan Tran
ABSTRACT The use of eggshells as an alternative source of calcium carbonate for groundnut can reduce the impact on the natural reserves of limestone, a non-renewable natural source. This study aimed to investigate the effects of eggshell powder application on the growth and yield of groundnut. The calcium treatments were lime application (A0) at 500 kg ha−1 and four rates of eggshell powder application
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Synergistic and sustainable impact of reducing nitrogen fertilizer on growth, yield, and quality of ramie (Boehmeria nivea L.) Plant Prod. Sci. (IF 2.5) Pub Date : 2022-09-09 Muhammad Hamzah Saleem, Huiqun Zhu, Lijun Liu
ABSTRACT Ramie (Boehmeria nivea L.) is China’s unique environmentally friendly cash crop. To protect the environment more strictly and develop sustainably, the planting process will reduce the input of fertilizer (nitrogen fertilizer). The effect of reduced nitrogen fertilizer on the yield and quality of ramie is still under systematic investigation. Taking the fiber variety ‘H5’ as the target, 4 N
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Predicting rice (Oryza sativa L.) canopy temperature difference and estimating its environmental response in two rice cultivars, ‘Koshihikari’ and ‘Takanari’, based on a neural network Plant Prod. Sci. (IF 2.5) Pub Date : 2022-07-26 Rintaro Kondo, Yu Tanaka, Tatsuhiko Shiraiwa
ABSTRACT Canopy photosynthesis is an important component of biomass production in field-grown rice (Oryza sativa L.). Although canopy temperature differences (CTD) provide important information for evaluating canopy photosynthesis, the measurement of CTD is still a labor-intensive task. Therefore, we designed this study to establish a model for predicting CTD under different field conditions using
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Evaluation of root distribution and nitrate leaching in sugarcane, Erianthus, and their intergeneric hybrid at new planting Plant Prod. Sci. (IF 2.5) Pub Date : 2022-07-08 Hiroo Takaragawa, Ken Okamoto, Yoshifumi Terajima, Toshihiko Anzai
ABSTRACT Nitrate-nitrogen leaching from farmland has adverse effects on drinking water and environmental conservation in tropical and subtropical island regions such as the Southwest Islands of Japan. Sugarcane is widely grown in these areas, and it is necessary to increase the nitrogen use efficiency of this crop to reduce nitrogen leaching. Studies on nitrogen utilization in this species have focused
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Evaluation of mother and daughter root traits in sweet potato germplasm cultivated by direct planting Plant Prod. Sci. (IF 2.5) Pub Date : 2022-06-20 Takeo Sakaigaichi, Keisuke Suematsu, Yoshifumi Terajima, Akira Kobayashi, Yukari Kawata, Yumi Kai
ABSTRACT Direct planting (i.e. the planting of seed roots) in sweet potato results in the formation of two root types – ‘mother’ and ‘daughter’ roots. High and stable daughter root yields are necessary to improve the acceptance of direct planting cultivation because mother roots have no commercial value. To establish a basis for the effective breeding, the root traits of 28 sweet potato genotypes cultivated
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Growth and salt accumulation capacity of the common ice plant in the tsunami-affected soil Plant Prod. Sci. (IF 2.5) Pub Date : 2022-06-20 Sakae Agarie, Masahiro Tada, Masako Kimura, Hitoshi Suzuki, Masahiro Morokuma, Masanori Toyota, Ichiro Nakamura
ABSTRACT Halophytes are salt-tolerant plant that grows naturally in saline areas where almost all conventional crops die due to NaCl toxicity. The common ice plant, Mesembryanthemum crystallinum L., an annual halophyte native to South Africa, tolerates high salinity levels and accumulates NaCl in a shoot at a high level. To check the availability of the ice plant for desalinization of soils, we cultured