Article
Agronomy
Krishna Ghimire, Surbhi Gupta, Sisi Geng, Sixue Chen, Arvid Boe, Yajun Wu
Summary: In order to sustain high alfalfa production with limited water, cultivars with improved water use efficiency (WUE) are needed. Through greenhouse experiments, the collection River side (RS) was identified as having greater WUE under drought than other accessions, possibly due to its stomatal sensitivity to abscisic acid (ABA).
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2021)
Article
Plant Sciences
Kechen Song, Haiying Hu, Yingzhong Xie, Li Fu
Summary: Glycyrrhiza uralensis has adaptive water use strategies to cope with water stress, including maintaining water content and turgor pressure, improving water use efficiency, and promoting root biomass accumulation.
Article
Plant Sciences
Yuting Ma, Linli Hu, Yue Wu, Zhongqi Tang, Xuemei Xiao, Jian Lyu, Jianming Xie, Jihua Yu
Summary: Green light partially replacing red light and blue light improves drought tolerance in cucumber seedlings by promoting the synthesis of GABA and upregulating the expression of the CsGAD2 gene. This study highlights the role of green light in plant physiological processes and suggests that analyzing the function of green light in improving drought tolerance could lead to new approaches for enhancing plant stress resilience.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Ramasamy Gobu, Goutam Kumar Dash, Jai Prakash Lal, Padmini Swain, Anumalla Mahender, Annamalai Anandan, Jauhar Ali
Summary: This study demonstrates the relevance of water use efficiency with deeper rooting along with other root traits and gas exchange parameters. It also reveals that landraces are more water-use efficient with superior root traits than improved genotypes under drought stress conditions.
Article
Environmental Sciences
Mengtian Huang, Panmao Zhai, Shilong Piao
Summary: The study found that the timing of drought does impact the response of ecosystem water use efficiency during extreme drought years. Negative impacts of extreme drought stress during the dry season on ecosystem WUE were more pronounced, and the impacts of drought on ecosystem carbon-water interactions varied among ecosystem types.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Agronomy
Minguo Liu, Le Mu, Yixiao Lu, Huimin Yang
Summary: Deficit irrigation significantly decreased forage accumulation, leaf area index (LAI), plant relative water content (RWC), and radiation use efficiency (RUE) of alfalfa. The decrease in forage accumulation under deficit irrigation was mainly caused by weakened photosynthetic ability (representing RUE).
Article
Plant Sciences
Lovepreet Singh, Chris Pierce, Nicholas Santantonio, Robert Steiner, Don Miller, Jon Reich, Ian Ray
Summary: This study reports the effect of deploying DNA marker-assisted selection (MAS) for drought resilience in alfalfa. The results show that QTL MAS can significantly affect forage productivity of elite alfalfa germplasm in drought-stressed environments. However, characterizing donor alleles within elite backgrounds of interest is necessary before implementing MAS-based breeding.
Article
Agronomy
Muhammad Kamran, Zhengang Yan, Qianmin Jia, Shenghua Chang, Irshad Ahmad, Muhammad Usman Ghani, Fujiang Hou
Summary: In this study, the potential effects of irrigation and nitrogen application on alfalfa forage yield, quality, and resource use efficiency in arid agro-climatic conditions were investigated. The results showed that irrigation and nitrogen had significant effects on forage yield, quality, and resource use efficiency. Increasing irrigation amount led to an increase in forage yield, but a decrease in crude protein content and water use efficiency. Similarly, increasing nitrogen application resulted in a decline in forage yield, nutritive quality, and resource use efficiency. The study concluded that irrigation of 450 mm coupled with 150 kg N ha-1 showed the most promising effects for optimal forage yield, enhanced nutritive values, and greater resource use efficiency of alfalfa in arid regions.
FIELD CROPS RESEARCH
(2022)
Article
Environmental Sciences
Min Wang, Zhi Ding, Chaoyang Wu, Lisheng Song, Mingguo Ma, Pujia Yu, Bingqing Lu, Xuguang Tang
Summary: This study examined the ecosystem water-use efficiency (WUE) in karst and non-karst areas of Southwest China in response to seasonal droughts. The research found that the karst area had lower WUE compared to the non-karst area, with more severe impacts of drought, especially during summer and spring droughts. The study also highlighted the importance of understanding the coupling relationship between global carbon and water cycles in the face of increasing drought frequency and severity due to future climate change.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Alessandra Fracasso, Marta Vallino, Alessia Staropoli, Francesco Vinale, Stefano Amaducci, Andrea Carra
Summary: Research shows that downregulation of miR396 in tomato plants leads to higher water use efficiency under water stress conditions, associated with faster accumulation of ABA, induction of several protective genes, and activation of JA and GABA pathways.
Article
Agronomy
Thierry Klanvi Tovignan, Yasmeen Basha, Steffen Windpassinger, Sruthy Maria Augustine, Rod Snowdon, Stjepan Vukasovic
Summary: Understanding sorghum response to water stress at different developmental stages is crucial for improving drought tolerance in sorghum varieties. This study aimed to characterize the agro-physiological responses and water use of sorghum under different drought scenarios. The experiment used a DroughtSpotter facility to track real-time water use. The results showed that DS2 had a greater impact on green leaf number and plant leaf area, but delayed flowering compared to DS1. Moreover, DS2 had taller plants and higher biomass production. However, DS1R and WW treatments outperformed both DS1 and DS2 in terms of grain yield. Transpiration and photosynthetic rates decreased concurrently with stomatal conductance, indicating stomatal down-regulation. However, the increase in intercellular CO2 concentration suggested a non-stomatal limitation of photosynthesis. Overall, DS2 had higher water use efficiency compared to WW and DS1 treatments, highlighting the importance of avoiding drought stress during the critical stage of growing point differentiation for better yield and water use efficiency.
Article
Agronomy
Aliasghar Montazar, Daniel Putnam
Summary: This study conducted field-scale analysis and data collection in commercial alfalfa fields in the low deserts of California. The findings suggest that moderate summer deficit irrigation strategies can improve water use efficiency and reduce water consumption while maintaining profitability and sustainability in alfalfa production.
Article
Agronomy
Yuan Yuan Duan, Jing Zhang, Zhao Jiang, Xiao Xing Wei, Zheng Gang Guo, Hui Xia Liu
Summary: This study found that PRD irrigation increased carbon content in alfalfa plants and improved soil organic carbon storage, but decreased soil total carbon and soil inorganic carbon storage. PRD reduced carbon retention in the soil-plant systems of alfalfa, thus decreasing its carbon sequestration potential.
IRRIGATION SCIENCE
(2023)
Article
Agronomy
Yufeng Zou, Qaisar Saddique, Ajaz Ali, Jiatun Xu, Muhammad Imran Khan, Mu Qing, Muhammad Azmat, Huanjie Cai, Kadambot H. M. Siddique
Summary: The study found that appropriate deficit irrigation levels can increase maize yield and help growers cope with reduced water resources. In 2013, there was higher water use efficiency and lower evapotranspiration, resulting in higher maize yield compared to 2012.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Agriculture, Multidisciplinary
Hu Ling-yu, Yue Hong, Zhang Jing-yun, Li Yang-tian-su, Gong Xiao-qing, Zhou Kun, Ma Feng-wang
Summary: The study found that increasing the biosynthesis of myo-inositol can enhance drought tolerance and water-use efficiency in apple plants. The accumulation of myo-inositol can increase the accumulation of osmoprotectants and the activity of antioxidant enzymes.
JOURNAL OF INTEGRATIVE AGRICULTURE
(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)