Identification of water use efficient wheat genotypes with high yield for regions of depleting water resources in India

Meena, Raj Pal; Karnam, Venkatesh; Sendhil, R; Rinki,; Sharma, Rajni; Tripathi, S. C.; Singh, Gyanendra Pratap

doi:10.1016/j.agwat.2019.105709

Cited by 26 publications

(12 citation statements)

References 44 publications

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“…Relationship of traits studied with GY was assessed through Pearson correlation analysis, which showed that except WUE (r = −0.70), all other traits were positively correlated to GY. The correlation observations in this study are in close conformity with earlier reports in wheat and barley [65][66][67], except that for WUE and GY, which is usually reported as positive [68,69]. The discrepancy between our findings and those by other authors relating GY and WUE positively are likely because when water resources were the same, increases in grain yield increased WUE; but when the total amount of water available increased, WUE decreased vastly and thus they negative correlation across the whole dataset.…”

Section: Discussionsupporting

confidence: 88%

Effect of Rice Residue Retention and Foliar Application of K on Water Productivity and Profitability of Wheat in North West India

et al. 2020

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The rice–wheat cropping system being the backbone of food security in South-Asia has resulted in soil health deterioration, declining water table, and air pollution affecting livability index of the region. The effect of rice residue retention (RRR), irrigation levels and foliar application of K on wheat grain yield (GY), water use efficiency (WUE) and profitability was tested over three years. RRR increased wheat GY (5224 kg ha−1), above-ground biomass (AGBM = 11.9 t ha−1), tillers per square meter (TPM = 469) and grains per meter square (GrPMS = 13,917) significantly. Relative water content (RWC = 93.8) and WUE (2.45 k gm−3) were also increased significantly by RRR. Consequently, profitability (Net return = 624.4 $ and Benefit to cost (B:C) ratio) was enhanced. Foliar application of K enhanced GY (5151 kg ha−1), AGBM (12 t ha−1), RWC (94.1), SPAD (52.2), WUE (2.40 kg m−3), net returns (625.2 $) and BC ratio (1.62) significantly. RRR increased GY (15.66%) and WUE (17.39%) with additional revenue of 151 $ with only one irrigation at the CRI stage (ICS). RRR adopted over 10% of the area can earn 187 million-US$ annually. RRR if adopted over existing practice on a large area would reduce environmental degradation with an enhanced income to small and marginal farmers.

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Section: Discussionsupporting

confidence: 88%

Effect of Rice Residue Retention and Foliar Application of K on Water Productivity and Profitability of Wheat in North West India

et al. 2020

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“…The cultivars generally showed the same response pattern, and the highest WUE occurred between WR1 and WR2 regardless of the cultivar (Figure 5a, Table S2). However, there was lower WUE with WR3 and WR4, possibly due to water loss through percolation [8]. According to [40,41], plants under water restriction conditions increased WUE because only a partial reduction of the stomatal aperture restricts transpiration more than CO 2 influx, which increases WUE.…”

Section: Water Use Efficiencymentioning

confidence: 99%

“…Platforms for Plants 2022, 11, 559 2 of 17 drought phenotyping in the field have been successfully used in the Cerrado [1]. The selection of drought-tolerant cultivars can be made through a combination of variables, namely: water use efficiency [8], productivity components [9] and vegetation and physiological indices [10][11][12], which may be correlated with grain yield and quality [13].…”

Section: Introductionmentioning

confidence: 99%

Water Stress Alters Morphophysiological, Grain Quality and Vegetation Indices of Soybean Cultivars

Tavares

Ribeiro

Ramos

et al. 2022

Plants

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Rainfall is among the climatic factors that most affect production, as in the Brazilian Cerrado. Non-destructive and automated phenotyping methods are fast and efficient for genotype selection. The objective of this work was to evaluate, under field conditions, the morphophysiological changes, yield, and grain quality of soybean (Glycine max L. Merrill) under water stress in the Brazilian Cerrado. The plots comprised six soybean cultivars and the subplots of four water regimes, corresponding to 31, 44, 64 and 100% of crop evapotranspiration replacement. The experiments were conducted from May to September 2018 and 2019. An irrigation system with a bar of sprinklers with different flow rates was used. Gas exchange, vegetation indices (measured using a hyperspectral sensor embedded in a drone), yield and grain quality were evaluated. Water stress had different effects on gas exchange, vegetation indices, grain yield and chemical composition among the cultivars. Embrapa cultivar BRS 7280 Roundup ready (RR) and Nidera cultivar NA 5909 RG (glyphosate resistant) are yield stable and have a greater tolerance to drought. BRS 7280RR showed a higher tolerance to drought and higher water use efficiency (WUE) than all other tested cultivars. Vegetation indices, such as the NDVI (Normalized Difference Vegetation Index), correlated with the morphophysiological traits, such as plant height, were the most responsive variables to water stress. The NDVI can be used to predict soybean yield as a tool in a selection program under drought.

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“…Therefore, reasonable irrigation strategies have been proposed (i.e., regulating irrigation frequency and timing, applying deficit irrigation, and supplemental irrigation) for increasing WUE and maintaining high wheat production (Wang, 2017;Meena et al, 2019a;Zhao et al, 2020). However, studies have shown that renewing varieties is an effective way to increase yield and WUE (Faralli et al, 2019;Meena et al, 2019b), and it is necessary to study the physiological characteristics of wheat varieties with high yield and high WUE.…”

Section: Introductionmentioning

confidence: 99%

Differences in Water Consumption of Wheat Varieties Are Affected by Root Morphology Characteristics and Post-anthesis Root Senescence

Zheng

Zhang

et al. 2022

Front. Plant Sci.

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Selecting high-yielding wheat varieties for cultivation can effectively increase water use efficiency (WUE) in the Huang–Huai–Hai Plain, where is threatened by increasing water shortages. To further identify the difference in water use and its relationship with root morphology and senescence characteristics, wheat varieties with different yield potentials—Yannong 1212 (YN), Jimai 22 (JM), and Liangxing 99 (LX)—were studied in a high-yielding wheat field. The water consumption percentage (CP) in YN decreased from planting to anthesis; however, crop evapotranspiration and CP increased from anthesis to maturity compared with JM and LX. In YN, a higher soil water consumption from anthesis to maturity in the 0–100 cm soil layer was partly attributed to the greater root weight density in the 20–60 cm soil layer. In topsoil (0–40 cm), root length density, root surface area density, and root diameter at 20 days after anthesis, root superoxide dismutase activity, and root triphenyl tetrazolium chloride reduction activity during mid grain filling stage were higher in YN than in JM and LX. YN had the highest grain yields of 9,840 and 11,462 kg ha–1 and increased grain yield and WUE by 12.0 and 8.4%, respectively, as compared with JM, and by 30.3 and 21.3%, respectively, as compared with LX. Ensuring more soil water extraction post-anthesis by increasing roots in the 20–60 cm soil profile, improving root morphology traits, and alleviating root senescence in the topsoil during mid-grain filling stage will assist in selecting wheat varieties with high yield and WUE.

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Identification of water use efficient wheat genotypes with high yield for regions of depleting water resources in India

Cited by 26 publications

References 44 publications

Effect of Rice Residue Retention and Foliar Application of K on Water Productivity and Profitability of Wheat in North West India

Effect of Rice Residue Retention and Foliar Application of K on Water Productivity and Profitability of Wheat in North West India

Water Stress Alters Morphophysiological, Grain Quality and Vegetation Indices of Soybean Cultivars

Differences in Water Consumption of Wheat Varieties Are Affected by Root Morphology Characteristics and Post-anthesis Root Senescence

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