Article
Green & Sustainable Science & Technology
Zsuzsanna Farkas, Angela Anda, Gyula Vida, Otto Veisz, Balazs Varga
Summary: Field crop production needs to adapt to challenges brought by climate change. This study investigated the responses of wheat, barley, and oat varieties to increased CO2 concentration and simulated drought. Results showed positive CO2 responses in barley, while water uptake in all wheat cultivars decreased significantly but water-use efficiency improved under 1000 ppm CO2.
Article
Biochemistry & Molecular Biology
Khairiah M. Alwutayd, Anamika A. Rawat, Arsheed H. Sheikh, Marilia Almeida-Trapp, Alaguraj Veluchamy, Rewaa Jalal, Michael Karampelias, Katja Froehlich, Waad Alzaed, Naheed Tabassum, Thayssa Rabelo Schley, Anton R. Schaeffner, Ihsanullah Daur, Maged M. Saad, Heribert Hirt
Summary: The use of beneficial microbes to enhance drought stress tolerance in plants remains largely unexplored. In this study, we found that a root endophytic desert bacterium, Pseudomonas argentinensis strain SA190, can improve drought stress tolerance in Arabidopsis. Through transcriptome and genetic analysis, we discovered that SA190-induced root morphogenesis and gene expression are regulated by the plant abscisic acid pathway. Additionally, we demonstrated that SA190 primes target gene promoters in an epigenetic ABA-dependent manner. Furthermore, we applied SA190 priming to alfalfa crops and observed enhanced performance under drought conditions.
Article
Environmental Sciences
Vita Antoniuk, Kiril Manevski, Kirsten Korup, Rene Larsen, Inge Sandholt, Xiying Zhang, Mathias Neumann Andersen
Summary: Precision irrigation is a promising method to mitigate drought impacts on crop production by optimizing water resources. This study utilized unmanned aerial systems equipped with sensors to detect and quantify drought stress in winter wheat. The Water Deficit Index showed a strong correlation with plant water status. Future research should focus on temporal upscaling of evapotranspiration for developing site-specific irrigation recommendations.
Article
Multidisciplinary Sciences
Haidong Zhao, Lina Zhang, M. B. Kirkham, Stephen M. Welch, John W. Nielsen-Gammon, Guihua Bai, Jiebo Luo, Daniel A. Andresen, Charles W. Rice, Nenghan Wan, Romulo P. Lollato, Dianfeng Zheng, Prasanna H. Gowda, Xiaomao Lin
Summary: The authors demonstrate that compound climate extremes in recent decades have caused reduced winter wheat yields in the U.S. Great Plains, most severely affecting the same areas as the Dust Bowl in the 1930s. The study shows that compound hot-dry-windy events significantly increased in the region from 1982 to 2020 and were the main drivers for yield loss. These findings highlight the significant implications of compound climate extremes for winter wheat production in the United States and beyond, which have been overlooked in traditional risk assessments.
NATURE COMMUNICATIONS
(2022)
Article
Agronomy
Henning Ebmeyer, Christa M. Hoffmann
Summary: The study showed that early drought stress led to the most significant yield reductions, with water consumption being proportional to growth rate. Differences in water consumption and water use efficiency were observed among different sugar beet genotypes, but no genotype by water supply interaction was found.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Chen Ru, Xiaotao Hu, Dianyu Chen, Wene Wang, Jingbo Zhen
Summary: There will be longer and more intense periods of heat and drought stress in the future for terrestrial ecosystems. This study investigated the responses of wheat plants to heat and drought stress and their recovery after stress relief. The results showed that while most physiological processes were reversible after stress relief, some irreversible damage was caused by combined heat and drought stress.
Article
Multidisciplinary Sciences
Keach Murakami, Seiji Shimoda, Yasuhiro Kominami, Manabu Nemoto, Satoshi Inoue
Summary: This study developed a machine learning model to predict winter wheat yield in Hokkaido, Japan, utilizing high-resolution meteorological data and yield statistics. The model showed that precipitation, temperature, and irradiance during grain-filling period were significant factors affecting yield under wet climate conditions, with PLS, SVR, and RF outperforming traditional linear regression models. The analysis also highlighted the importance of including key meteorological variables in predicting yield accurately, demonstrating the usefulness of explainable machine learning in crop yield prediction.
Article
Agronomy
Yongcai Zhou, Congcong Lao, Yalong Yang, Zhitao Zhang, Haiying Chen, Yinwen Chen, Junying Chen, Jifeng Ning, Ning Yang
Summary: Combining image texture and vegetation indices can significantly improve the estimation accuracy of winter wheat Gs; High-resolution multispectral image texture correlates well with Gs, and higher ground resolution leads to higher correlation between Gs and image texture, vegetation indices; Combination of image texture and VIs provides a feasible and accurate method for water stress diagnosis of winter wheat.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Multidisciplinary Sciences
Xiangchi Zhang, Chao Li, Weidan Lu, Xiaoli Wang, Bin Ma, Kaiyong Fu, Chunyan Li, Cheng Li
Summary: The study found that drought stress on wheat can be mitigated more effectively under low phosphorus conditions, and the regulatory genes differ between the two varieties. Xindong20 exhibits higher drought tolerance, with more up-regulated genes involved in the response.
Article
Agronomy
Shuoshuo Liang, Lu Li, Ping An, Suying Chen, Liwei Shao, Xiying Zhang
Summary: The spatial distribution of irrigation and nutrients in soil significantly affects crop growth and water productivity. Applying irrigation in deep soil layer can increase grain yield and water productivity under water deficit conditions, while locating nutrients in deep soil layer may decrease crop yield and water productivity.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Plant Sciences
Olha Lakhneko, Oleg Stasik, Ludovit Skultety, Dmytro Kiriziy, Oksana Sokolovska-Sergiienko, Mariia Kovalenko, Maksym Danchenko
Summary: Drought is a major limitation for sustainable agricultural production, particularly affecting the quality and quantity of bread wheat yield during flowering. Through studying contrasting wheat cultivars, it was found that the sensitive cultivar showed ineffective water management and a decline in photosynthesis, while the tolerant cultivar used photorespiration to dissipate excessive light energy and induced superoxide dismutase for a less inhibited photosynthesis. The tolerant cultivar also exhibited a more stable gluten profile and accumulation of specific proteins, indicating its potential as a marker for drought tolerance in breeding.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Jiujiang Wu, Gang Cheng, Nan Wang, Hongzheng Shen, Xiaoyi Ma
Summary: This study used different indices and methods to investigate drought conditions in the North China Plain and found that the southern region is mainly affected by mild drought, while the northern region experiences more severe drought. Drought risks are increasing in the northern parts and decreasing in the southern parts. Additionally, drought has a lagged impact on winter wheat yield, with the greening stage being the most sensitive.
Article
Agronomy
Wiza Mphande, Aidan D. Farrell, Ivan G. Grove, Laura H. Vickers, Peter S. Kettlewell
Summary: The study showed that both film antitranspirants and metabolic antitranspirants can increase grain yield under drought conditions, with a more pronounced effect observed in controlled drought scenarios. Leaf ABA concentration was negatively correlated with yield, but multiple applications of exogenous ABA could lead to higher yields.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2022)
Article
Agronomy
Grazina Statkeviciute, Zilvinas Liatukas, Jurgita Ceseviciene, Kristina Jaskune, Rita Armoniene, Ramune Kuktaite, Gintaras Brazauskas
Summary: Water deficit and heat stress have a significant impact on the yield and quality of winter wheat. This study evaluated the grain yield, quality, and gluten protein characteristics of 50 winter wheat cultivars and breeding lines. The results indicate that the combined heat and drought stress in 2019 had a more severe effect on yield and grain quality than drought alone in 2018. Nitrogen fertilization regimes also influenced the yield, with higher input resulting in increased yield. Genotype was found to be the main factor determining gluten protein characteristics, regardless of nitrogen application or abiotic stress conditions.
Article
Plant Sciences
Xuejing Liu, Xiaodong Wang, Pan Liu, Xiaoyuan Bao, Xiaoyang Hou, Mingming Yang, Wenchao Zhen
Summary: This study investigated the hormonal changes and transcriptional profiles of drought-resistant and -sensitive winter wheat cultivars in response to drought and rehydration. The results showed that rehydration could alleviate peroxidation and osmotic stress caused by water deficit and promote wheat growth.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Vikrant Khare, Rama Shankar Shukla, Sanjay Kumar Singh, Suneeta Pandey
Summary: This study explores the variation and recognition of heat responsive traits in wheat, aiming to enhance wheat productivity in high temperature stress conditions. The findings provide valuable insights into the key factors influencing grain yield and offer a framework for developing heat tolerant cultivars in the future.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2024)
