Selecting traits to improve the yield and water use efficiency of winter wheat under limited water supply

Lu, Yang; Yan, Zongzheng; Lü, Li; Gao, Congshuai; Shao, Lei

doi:10.1016/j.agwat.2020.106410

Cited by 30 publications

(19 citation statements)

References 59 publications

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“…Its global production is estimated by 757.4 million tons in the year of 2019 28 . Although, the modern high yielding wheat cultivars are introduced to increase wheat productivity 29 and these cultivars consume massive amounts of mineral fertilizers 30 ; yet, appropriate techniques are also needed to maximize nutrient utilization by plants in order to sustain the available limited resources. For example, nitrogen use efficiency by wheat does not exceed 33% worldwide 28 and others nutrients mostly do not exceed 50%.…”

Section: Introductionmentioning

confidence: 99%

Integral effects of brassinosteroids and timber waste biochar enhances the drought tolerance capacity of wheat plant

Lalarukh

Amjad

Mansoora

et al. 2022

Sci Rep

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Drought stress is among the major threats that affect negatively crop productivity in arid and semi-arid regions. Probably, application of some additives such as biochar and/or brassinosteroids could mitigate this stress; however, the mechanism beyond the interaction of these two applications is not well inspected. Accordingly, a greenhouse experiment was conducted on wheat (a strategic crop) grown under deficit irrigation levels (factor A) i.e., 35% of the water holding capacity (WHC) versus 75% of WHC for 35 days while considering the following additives, i.e., (1) biochar [BC, factor B, 0, 2%] and (2) the foliar application of 24-epibrassinolide [BR, factor C, 0 (control treatment, C), 1 (BR1) or 3 (BR2) μmol)]. All treatments were replicated trice and the obtained results were statistically analyzed via the analyses of variance. Also, heat-map conceits between measured variables were calculated using the Python software. Key results indicate that drought stress led to significant reductions in all studied vegetative growth parameters (root and shoot biomasses) and photosynthetic pigments (chlorophyll a, b and total contents) while raised the levels of oxidative stress indicators. However, with the application of BC and/or BR, significance increases occurred in the growth attributes of wheat plants, its photosynthetic pigments, especially the combined additions. They also upraised the levels of enzymatic and non-enzymatic antioxidants while decreased stress indicators. Furthermore, they increased calcium (Ca), phosphorus (P) and potassium (K) content within plants. It can therefore be deduced that the integral application of BR and BC is essential to mitigate drought stress in plants.

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Section: Introductionmentioning

confidence: 99%

Integral effects of brassinosteroids and timber waste biochar enhances the drought tolerance capacity of wheat plant

Lalarukh

Amjad

Mansoora

et al. 2022

Sci Rep

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“…Each experimental unit was measured for yield and yield-related characteristics, such as plant height, seeds per spike, total dry matter (kg ha −1 ), number of tillers per plant, grain yield (kg ha −1 ), average seeds weight per spike, and harvest index. Portable chlorophyll meters (SPAD-502, Konica Minolta, Osaka, Japan) and mobile photosynthesis systems (LI-6400, LI-COR Biosciences, Lincoln, NE 68504, USA) were used to collect data on physiological parameters, including chlorophyll content percent and net photosynthetic rate [26,27]. Wheat plants were harvested at various stages of development to measure fresh and dry biomass.…”

Section: Procedure/protocols For Growth and Yield Parametersmentioning

confidence: 99%

Effects of Environmental Stresses (Heat, Salt, Waterlogging) on Grain Yield and Associated Traits of Wheat under Application of Sulfur-Coated Urea

Altaf

Zhu

et al. 2021

Agronomy

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Abiotic stresses, such as heat, salt, waterlogging, and multiple-stress environments have significantly reduced wheat production in recent decades. There is a need to use effective strategies for overcoming crop losses due to these abiotic stresses. Fertilizer-based approaches are readily available and can be managed in all farming communities. This research revealed the effects of sulfur-coated urea (SCU, 130 kg ha−1, release time of 120 days) on wheat crops under heat, salt, waterlogging, and combined-stress climatic conditions. The research was done using a completely randomized design with three replicates. The results revealed that SCU at a rate of 130 kg of N ha−1 showed a significantly (p ≤ 0.05) high SPAD value (55) in the case of waterlogging stress, while it was the lowest (31) in the case of heat stress; the control had a SPAD value of 58. Stress application significantly (p ≤ 0.05) reduced the leaf area and was the highest in control (1898 cm2), followed by salt stress (1509 cm2), waterlogging (1478 cm2), and heat stress (1298 cm2). A significantly (p ≤ 0.05) lowest crop yield was observed in the case of heat stress (3623.47 kg ha−1) among all stresses, while it was 10,270 kg ha−1 in control and was reduced up to 35% after the application of heat stress. Among all stresses, the salt stress showed the highest crop yield of 5473.16 kg ha−1. A significant correlation was observed among growth rate, spike length, yield, and physiological constraints with N content in the soil. The SCU fertilizer was the least effective against heat stress but could tolerate salt stress in wheat plants. The findings suggested the feasibility of adding SCU as an alternative to normal urea to alleviate salt stresses and improve wheat crop growth and yield traits. For heat stress tolerance, the applicability of SCU with a longer release period of ~180 days is recommended as a future prospect for study.

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“…There has been a substantial amount of research based on single irrigation in the spring, which reached different conclusions; however, they proved that single irrigation generally reduces or maintains the yield while increasing the WUE compared with conventional irrigation 25,30,31 . Previous studies on single irrigation in spring were often based on standing stage and jointing stage but there have been few studies on irrigation based on the spring leaf age of wheat 21 .…”

Section: Introductionmentioning

confidence: 99%

“…Optimizing irrigation schedule is an important measure to improve the winter wheat yield and WUE [20][21][22] .…”

Section: Introductionmentioning

confidence: 99%

Single irrigation at the four-leaf stage in the spring optimizes winter wheat water consumption characteristics and water use efficiency

Bao

Liu

Hou

et al. 2022

Preprint

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Water scarcity is a major limiting factor for crop production in North China Plain (NCP), which produces the majority of the country's winter wheat (Triticum aestivum L.). The objective of this three-year field study was to see if and when irrigation one-time in spring improves grain yield and water use efficiency. Four sets of irrigation were established at the 3-leaf visible stage (L3) and the L4, L5, and L6 stages. The spike number, 1,000-grain weight, and water consumption increased progressively when irrigation time was delayed, whereas grain yield, grain number, dry matter, harvest, and WUE grew, then dropped, and peaked at L4. The increased grain number can be attributed to the L4's higher daily water consumption and water consumption percentage than the L3, L5, and L6 at the jointing-anthesis stages. L4 had a shorter cumulative period of soil drought stress (37 days), whereas L3, L5, and L6 had 40, 42, and 43 days, respectively. Furthermore, flag leaf senescence was postponed in L4 with a better post-anthesis leaf area index, photosynthetic rate, chlorophyll content, stronger superoxide dismutase activity, and reduced malondialdehyde concentration. As a result, single irrigation at the 4-leaf visible stage optimized water deficit and consumption before and after anthesis, resulting in higher yield and WUE in the NCP.

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Selecting traits to improve the yield and water use efficiency of winter wheat under limited water supply

Cited by 30 publications

References 59 publications

Integral effects of brassinosteroids and timber waste biochar enhances the drought tolerance capacity of wheat plant

Integral effects of brassinosteroids and timber waste biochar enhances the drought tolerance capacity of wheat plant

Effects of Environmental Stresses (Heat, Salt, Waterlogging) on Grain Yield and Associated Traits of Wheat under Application of Sulfur-Coated Urea

Single irrigation at the four-leaf stage in the spring optimizes winter wheat water consumption characteristics and water use efficiency

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