An integrated strategy for improving water use efficiency by understanding physiological mechanisms of crops responding to water deficit: Present and prospect

Kang, Jian; Hao, Xinmei; Zhou, Huiping; Ding, Risheng

doi:10.1016/j.agwat.2021.107008

Cited by 57 publications

(29 citation statements)

References 207 publications

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“…Currently, measuring canopy temperature becomes more convenient and faster with the help of the rapid development of aerospace remote sensing imaging technology based on unmanned aerial vehicles and satellites [70]. Therefore, these insights presented here, which can expand the entire field to the regional range, will be valuable for predicting yield and improving water use efficiency.…”

Section: Discussionmentioning

confidence: 93%

Crop Water Stress Index as a Proxy of Phenotyping Maize Performance under Combined Water and Salt Stress

Liao

Gao

et al. 2021

Remote Sensing

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The crop water stress index (CWSI), based on canopy temperature (Tc), has been widely used in evaluating plant water status and planning irrigation scheduling, but whether CWSI can diagnose the stress status of crops and predict the physiological traits and growth under combined water and salt stress remains to be further studied. Here, a model of CWSI was established based on the continuous measurements of Tc for two maize genotypes (ZD958 and XY335) under two water and salt conditions, combined with growth stage-specific non-water-stressed baselines (NWSB). The relationships between physiology, growth, and yield of maize with CWSI were analyzed. There were significant differences in NWSB between the two maize genotypes at the same and different growth stages; thus, growth stage-specific NWSBs were used. The difference in NWSB was due to the difference and change in effective leaf width. CWSI was closely related to leaf water potential, stomatal conductance, and net photosynthetic rate under different water and salt stress, and also explained the variations in leaf area index, biomass, water use, and yield. Collectively, CWSI can be used as a proxy indicator of high-throughput phenotyping maize performance under combined water and salt stress, which will be valuable for predicting yield and improving water use efficiency.

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Section: Discussionmentioning

confidence: 93%

Crop Water Stress Index as a Proxy of Phenotyping Maize Performance under Combined Water and Salt Stress

Liao

Gao

et al. 2021

Remote Sensing

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“…Among these strategies, improving water use efficiency may be a key to meeting current and future demands for food, fibers, and bioenergy . Water use efficiency is an indicator of physiological, agronomic, and management practices (Kang et al, 2021). Initially, this term was introduced for deficit irrigation strategies and is defined as the ratio of the mass of marketable yield to the volume of water consumed by the crop .…”

Section: Introductionmentioning

confidence: 99%

“…It is necessary to consider these factors as a whole to promote water-saving strategies in agriculture (Liu et al, 2021). Therefore, cooperation between crop physiologists, irrigation scientists, and irrigation engineers has led to a series of new irrigation strategies and technologies (Kang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…High-efficient water use also includes the knowledge of exact crop life water requirements (Kang et al, 2021). Water requirement is defined as the sum of transpiration and soil evaporation .…”

Section: Introductionmentioning

confidence: 99%

“…Soil evaporation is controlled by meteorological factors, leaf canopy coverage and soil moisture Lozano-Parra et al, 2018). Methods for determining crop water requirements are based on climatological, plant and soil measurements (Kang et al, 2021). Irrigation scheduling based on the variation of in-situ soil water content is widespread due to advanced technologies in soil moisture sensing devices.…”

Section: Introductionmentioning

confidence: 99%

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An integrated strategy for improving water use efficiency by understanding physiological mechanisms of crops responding to water deficit: Present and prospect

Cited by 57 publications

References 207 publications

Crop Water Stress Index as a Proxy of Phenotyping Maize Performance under Combined Water and Salt Stress

Crop Water Stress Index as a Proxy of Phenotyping Maize Performance under Combined Water and Salt Stress

Water use efficiency of upland rice and common bean under precision drip irrigation

Water and Wastewater Infrastructure

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