Article
Plant Sciences
Hyun-Su Park, Chang-Min Lee, Man-Kee Baek, O-Young Jeong, Suk-Man Kim
Summary: In this study, eight QTLs related to grain shape were identified through QTL analysis, which were located on chromosomes 2, 5, and 10. Among them, qGL2 (33.9% PEV for grain length), qGW5 (64.42% for grain width), and qGT10 (49.2% for grain thickness) were considered as the main effect QTLs. Using these three QTLs, an ideal QTL combination could be constructed to improve the grain shape of japonica cultivars without yield loss. Additionally, three potential breeding resources with a slender grain type were selected based on the QTL combination.
Article
Agronomy
Hiroki Saito, Yoshimichi Fukuta, Mitsuhiro Obara, Asami Tomita, Tsutomu Ishimaru, Kazuhiro Sasaki, Daisuke Fujita, Nobuya Kobayashi
Summary: This study identified two novel QTLs for the harvest index in rice, with qHI5.1 controlling grain size and qHI8.1 potentially involved in physiological processes related to the translocation of photosynthesis products. These QTLs can be valuable genetic resources for future breeding programs to enhance yield potential in Indica Group varieties.
Article
Agronomy
Miki Ogasawara, Naoya Miyazaki, Gotaro Monden, Kenta Taniko, Sathya Lim, Masahide Iwata, Takashige Ishii, Jian Feng Ma, Ryo Ishikawa
Summary: A candidate gene responsible for higher grain zinc accumulation in rice was identified, potentially linked to a partial defect in anther dehiscence. The study highlighted the importance of balancing fertility and grain zinc levels as essential agronomic traits in rice. The results suggest that regulating the expression of specific genes involved in anther dehiscence could impact grain productivity and zinc accumulation in rice plants carrying the identified chromosomal segment.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Plant Sciences
Samira A. F. El-Okkiah, Mohamed M. M. El-Afry, Safaa A. A. Shehab Eldeen, Amira M. M. El-Tahan, Omar M. M. Ibrahim, Mostafa M. M. Negm, Mohamad Alnafissa, Mohamed T. T. El-Saadony, Hessa M. R. S. Almazrouei, Synan F. F. AbuQamar, Khaled A. A. El-Tarabily, Dalia A. A. Selim
Summary: The study evaluated the effectiveness of foliar spray of silica in alleviating water stress in rice. It was found that foliar application of silica improved the drought tolerance of rice by enhancing plant growth and physiological parameters. The integration of silica in breeding programs is recommended to develop drought-tolerant rice cultivars.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Plant Sciences
Hong Lu, Fei Wang, Yan Wang, Rongbin Lin, Zhiye Wang, Chuanzao Mao
Summary: Phosphorus (P) is an essential macronutrient for plant growth and reproduction. However, the preferred form of P for plant uptake, orthophosphate (Pi), is often fixed in the soil, rendering it unavailable to plants. Due to limited phosphate rock resources, low fertilizer use efficiency, and increased demand for sustainable agriculture, understanding the molecular mechanisms of plant responses to P deficiency and improving plant phosphate efficiency in crops have become crucial.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Agronomy
Roselyne U. Juma, Jerome Bartholome, Parthiban Thathapalli Prakash, Waseem Hussain, John D. Platten, Vitaliano Lopena, Holden Verdeprado, Rosemary Murori, Alexis Ndayiragije, Sanjay Kumar Katiyar, Md Rafiqul Islam, Partha S. Biswas, Jessica E. Rutkoski, Juan D. Arbelaez, Felister N. Mbute, Douglas W. Miano, Joshua N. Cobb
Summary: Rice genetic improvement is crucial for food security in Asia and Africa, with the International Rice Research Institute (IRRI) playing a key role in creating and disseminating high-yielding rice varieties. Through rapid recurrent selection among elite breeding lines, IRRI has been able to achieve significant genetic gains for grain yield, indicating the importance of continuous improvement efforts in rice breeding programs.
Article
Agronomy
Gonzalo Carracelas, Nicolas Guilpart, Kenneth G. Cassman, Patricio Grassini
Summary: Rice yields in Uruguay have increased rapidly between 1990 and 2013, but there are signs of a recent slowdown. This study aimed to determine if the slowdown is due to the average yield approaching the yield potential ceiling. By using a simulation model and weather data, the study found that there is still room for increasing rice yields in Uruguay.
FIELD CROPS RESEARCH
(2023)
Article
Agronomy
Yaping Deng, Shengfeng Qiao, Weilu Wang, Weiyang Zhang, Junfei Gu, Lijun Liu, Hao Zhang, Zhiqin Wang, Jianchang Yang
Summary: The rice variety YJ2 showed stronger tolerance to low P than ZD88 under both irrigation regimes. Water-saving irrigation (AWD) improved grain yields, phosphorus efficiency, water use efficiency, and photosynthesis rates, particularly under low P conditions.
FOOD AND ENERGY SECURITY
(2021)
Article
Plant Sciences
Qiuqian Hu, Wencheng Wang, Qifan Lu, Jianliang Huang, Shaobing Peng, Kehui Cui
Summary: Decreased spikelet fertility in rice under high temperature is mainly caused by reduced pollen viability and anther dehiscence, leading to abnormalities in pollen and anther development. Heat-susceptible varieties are more affected by these disturbances compared to heat-tolerant varieties.
Article
Agronomy
Juan Camilo Velasquez, Angela Das Cas Bundt, Edinalvo Rabaioli Camargo, Andre Andres, Vivian Ebeling Viana, Veronica Hoyos, Guido Plaza, Luis Antonio de Avila
Summary: The study found that the effect of FPB on rice plants varies with planting time, growth stage, and rice cultivar. P450 inhibitors can reduce the doses of FPB needed to cause plant injury and growth reduction without compromising crop selectivity. FPB also impacts the expression of specific enzymes in rice plants, emphasizing the need for further research on its bio-activation mechanism.
Article
Plant Sciences
Sanjoy K. Debsharma, Mohammad Akhlasur Rahman, Mohammad Ruhul Quddus, Hasina Khatun, Ribed F. Disha, Popy R. Roy, Sharif Ahmed, Mohamed El-Sharnouby, Khandakar Md. Iftekharuddaula, Salman Aloufi, Fahad M. Alzuaibr, Mohammed Alqurashi, Mohamed I. Sakran, Mohammad Shahjahan Kabir
Summary: Soil salinity is a major constraint to rice production in coastal areas globally, affecting high-yielding rice cultivars. The study identified breeding lines with multiple-stress-tolerant QTL/genes and stable grain yield.
Article
Plant Sciences
Jinfang Qi, Lu Yu, Jingli Ding, Chenchen Ji, Sheliang Wang, Chuang Wang, Guangda Ding, Lei Shi, Fangsen Xu, Hongmei Cai
Summary: In this study, a NAC transcription factor, OsSNAC1, was found to have a positive regulatory role in nitrate uptake and utilization in rice. It directly binds to the upstream promoter regions of OsNRT2.1/2.2 and OsNRT1.1A/1.1B and activates their expression, increasing nitrate concentrations, N uptake, NUE, and NUI in rice plants, as well as plant biomass and yield. These findings provide a potential genetic approach for improving crop NUE in agriculture.
Article
Agronomy
Tong Yang, Mengjie Wang, Xiaodan Wang, Chunchun Xu, Fuping Fang, Fengbo Li
Summary: Enhanced-efficiency nitrogen fertilizer (EENF) can significantly reduce methane emissions and increase rice yield in rice production. The effectiveness of different EENF products and rice varieties in mitigating methane emissions and increasing rice yield varies, and there are differences in agronomic practices.
Article
Multidisciplinary Sciences
Xueqiang Wang, Wensheng Wang, Shuaishuai Tai, Min Li, Qiang Gao, Zhiqiang Hu, Wushu Hu, Zhichao Wu, Xiaoyang Zhu, Jianyin Xie, Fengmei Li, Zhifang Zhang, Linran Zhi, Fan Zhang, Xiaoqian Ma, Ming Yang, Jiabao Xu, Yanhong Li, Wenzhuo Zhang, Xiyu Yang, Ying Chen, Yan Zhao, Binying Fu, Xiuqin Zhao, Jinjie Li, Miao Wang, Zhen Yue, Xiaodong Fang, Wei Zeng, Ye Yin, Gengyun Zhang, Jianlong Xu, Hongliang Zhang, Zichao Li, Zhikang Li
Summary: This study conducted comprehensive genomic sequence analyses of rice domestication and modern breeding. The results showed clear genomic differentiation between the two subspecies of rice, japonica and indica, as a result of natural selection during domestication and artificial selection during breeding. Selection during domestication and breeding significantly reduced genomic diversity within populations and resulted in greater subspecific differentiation. However, the total genomic diversity between wild and cultivated rice populations did not experience severe genetic bottleneck during domestication. The study also highlighted the importance of utilizing the rich diversity within rice for future improvement.
JOURNAL OF ADVANCED RESEARCH
(2022)
Article
Plant Sciences
Hua Zhong, Shuai Liu, Tong Sun, Weilong Kong, Xiaoxiao Deng, Zhaohua Peng, Yangsheng Li
Summary: By conducting single-locus and multi-locus genome-wide association studies on a panel of 529 rice core varieties, a total of 152, 106, 12, 111, and 64 SNPs associated with various yield-related traits were detected. Furthermore, 74 significant quantitative trait nucleotides were identified across different multi-locus GWAS methods, and 20 common QTNs were discovered by both single-locus and multi-locus methods. Two candidate key genes (LOC_Os09g02830 and LOC_Os07g31450) were found to affect grain width and thousand-grain weight, respectively.
Article
Soil Science
Rima J. Porre, Wopke van der Werf, Gerlinde B. De Deyn, Tjeerd Jan Stomph, Ellis Hoffland
SOIL BIOLOGY & BIOCHEMISTRY
(2020)
Article
Agronomy
H. N. C. Berghuijs, Z. Wang, T. J. Stomph, M. Weih, W. Van der Werf, G. Vico
Article
Agronomy
Qi Wang, Wei Bai, Zhanxiang Sun, Dongsheng Zhang, Yue Zhang, Ruonan Wang, Jochem B. Evers, Tjeerd-Jan Stomph, Wopke van Der Werf, Chen Feng, Lizhen Zhang
Summary: The dominant species in intercropping may be cultivated at a higher density to achieve greater yield, but increasing their density does not always lead to improved yield in intercropping. Land equivalent ratios were higher in the dry year compared to the wet year, suggesting that intercropping performs better under conditions with limited resources.
FOOD AND ENERGY SECURITY
(2021)
Article
Agronomy
Thomas Awio, Kalimuthu Senthilkumar, Christian O. Dimkpa, George William Otim-Nape, Bas Kempen, Paul C. Struik, Tjeerd Jan Stomph
Summary: The study highlights the importance of proper water management and NPK fertilization in improving lowland rice productivity. Secondary and micro-nutrients were effective when applied with NPK on fluvisols in Tanzania but showed no significant impact on plintosols in Uganda. Good agronomic practices, timely transplanting, and weeding are crucial for achieving higher yields.
FIELD CROPS RESEARCH
(2021)
Article
Agronomy
P. Christiaan Biemond, Tjeerd Jan Stomph, P. Lava Kumar, Paul C. Struik
Summary: Mycotoxins are toxic secondary metabolites produced by fungi on agricultural produce, posing persistent threats to human and animal health. Air-borne spores are the main mode of spread, and consumption of mycotoxin-contaminated maize can lead to health hazards such as cancer.
Article
Agronomy
Thomas Awio, Kalimuthu Senthilkumar, Christian O. Dimkpa, George William Otim-Nape, Paul C. Struik, Tjeerd Jan Stomph
Summary: Increasing productivity per unit area is crucial for meeting cereal demand in sub-Saharan Africa. This study evaluated the contribution of recommended agronomic practices (RAP) and fertilization on closing the yield gap. Results showed that RAP and farmer-selected best practices significantly increased grain yield, while NPK fertilization further enhanced the yield. Different agronomic practices have varying effects on reducing the yield gap and need to be considered in terms of cost and fertilizer prices.
Article
Food Science & Technology
Qingyue Zhao, Wenqing Cao, Xinping Chen, Tjeerd Jan Stomph, Chunqin Zou
Summary: Human zinc and iron deficiencies can be alleviated by increasing the concentrations of these micronutrients in cereal grains, and nitrogen fertilization can play a significant role in enhancing their concentrations. Different crops respond differently to nitrogen supply, and factors such as soil texture, nitrogen and phosphorous levels, organic matter and zinc contents can affect the concentrations of zinc and iron in grains. Nitrogen fertilization can also reduce phytic acid concentration and improve the bioavailability of micronutrients.
GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT
(2022)
Review
Food Science & Technology
Deborah Nabuuma, Christine Reimers, Ky The Hoang, TjeerdJan Stomph, Kees Swaans, Jessica E. Raneri
Summary: The role of seed systems in nutrition of smallholder farmers has received little attention. This review identified three main themes: direct seed supply, improving seed access, and adoption of improved seed. The results showed that seed systems had mostly positive impacts on food security, household resilience, dietary quality, and diversity/nutrition status. However, there was a lack of focus on sustainable inclusion of seed systems into farmer seed systems.
GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT
(2022)
Article
Agronomy
Zishen Wang, Bei Dong, Tjeerd Jan Stomph, Jochem B. Evers, Peter E. L. van der Putten, Honghui Ma, Riccardo Missale, Wopke van der Werf
Summary: The combinability of species in intercrops under conventional management in Western Europe needs further research. Intercropping maize with other crop species can improve land use efficiency and total grain yield.
FIELD CROPS RESEARCH
(2023)
Article
Multidisciplinary Sciences
Chunjie Li, Tjeerd-Jan Stomph, David Makowski, Haigang Li, Chaochun Zhang, Fusuo Zhang, Wopke van der Werf
Summary: Crop diversification through intercropping is a promising practice to reduce the environmental impact of agriculture while maintaining or even increasing its productivity. Intercropping can generate higher yields and a diverse set of crop products compared to sole cropping, showcasing its potential in sustainable agricultural production.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Agriculture, Multidisciplinary
Lu Liu, Alida Melse-Boonstra, Wopke van der Werf, Fusuo Zhang, Wen-Feng Cong, Tjeerd jan Stomph
Summary: This research investigated the zinc intake gap in Chinese adults and explored the potential role of biofortification technologies in filling the gap. The study found that both dietary zinc intake and zinc gap were higher for males than females. Breeding and foliar zinc fertilization were identified as the most effective management strategies.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Agronomy
Hao Liu, Paul C. Struik, Yingjun Zhang, Jingying Jing, Tjeerd-Jan Stomph
Summary: Intercropping cereal and legume species does not improve or reduce the quality of produced feed, but it allows for more effective utilization of the land with higher production per unit area.
FIELD CROPS RESEARCH
(2023)
Article
Food Science & Technology
Thomas Awio, Paul C. C. Struik, Tjeerd Jan Stomph
Summary: The low productivity of rice in Uganda is due to sub-optimal production practices. Applying improved management practices, particularly in fertilizer and weed control, can enhance productivity.
FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
(2022)
Review
Agronomy
Wopke Van der Werf, Lizhen Zhang, Chunjie Li, Ping Chen, Chen Feng, Zhan Xu, Chaochun Zhang, Chunfeng Gu, Lammert Bastiaans, David Makowski, TjeerdJan Stomph
Summary: Intercropping, the planned cultivation of species mixtures on agricultural land, offers various benefits for sustainable agriculture. Research is needed to identify optimal species combinations and management practices, and meta-analysis is necessary to synthesize relevant information.
FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING
(2021)
Article
Agronomy
Qi Wang, Zhanxiang Sun, Wei Bai, Dongsheng Zhang, Yue Zhang, Ruonan Wang, Wopke Van der Werf, Jochem B. Evers, Tjeerd-Jan Stomph, Jianping Guo, Lizhen Zhan
Summary: Intercropping can increase crop yields by optimizing light interception and use efficiency. The effects of plant density on light use need further investigation. Increasing maize density can enhance light interception in monocropped maize, while the light use efficiency of peanut is improved in intercropping, especially in wetter years.
FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING
(2021)