Photosynthetic and hydraulic changes caused by water deficit and flooding stress increase rice’s intrinsic water-use efficiency

Zhu, Rui; Hu, Tiesong; Wu, Fengyan; Liu, Yong; Zhou, Shan; Wang, Yanxuan

doi:10.1016/j.agwat.2023.108527

Cited by 6 publications

(3 citation statements)

References 60 publications

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“…Studies have shown that drip fertigation can maintain high root activity and improve the ability of fruit trees to absorb water and nutrients, thereby promoting the yield of fruit trees ( Peng et al., 2023a ). Under the condition of drip irrigation and fertilization, excessive irrigation and fertilization will not increase the yield, but will lead to the accelerated vegetative growth of apple trees and affect the improvement of water use efficiency ( Zhu et al., 2023 ). In previous studies, domestic and foreign scholars have inconsistent conclusions on the regulation of apple fruit quality by irrigation and fertilization.…”

Section: Introductionmentioning

confidence: 99%

Optimization of irrigation and fertilization of apples under magnetoelectric water irrigation in extremely arid areas

Duan,

Wang,

et al. 2024

Front. Plant Sci.

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Apple (Malus pumila Mill.) is one of the important economic crops in the arid areas of Xinjiang, China. For a long time, there has been a problem of high consumption but low yield in water and fertilizer management, prevent improvements in apple quality and yield. In this study, 5-year-old ‘Royal Gala’ apple trees in extremely arid areas of Xinjiang were used as experimental materials to carry out field experiments. considering 5 irrigation levels (W1, 30 mm; W2, 425 mm; W3, 550 mm; W4, 675 mm; W5, 800 mm) and 5 fertilization levels (F1, 280 kg·ha-1; F2, 360 kg·ha-1; F3, 440 kg·ha-1; F4, 520 kg·ha-1; F5, 600 kg·ha-1) under magnetoelectric water irrigation conditions. The results demonstrated that magnetoelectric water combined with the application of 675 mm irrigation amount and 520 kg·ha-1 fertilization amount was the most effective combination. These results occurred by increasing net photosynthetic rate of apple leaves, improved the quality of apples, increased apple yield, and promoted the improvement of water and fertilizer use efficiency. Additionally, the quadratic regression model was used to fit the response process of yield, IWUE and PFP to irrigation amount and fertilization amount, and the accuracy was greater than 0.8, indicating good fitting effects. The synergistic effect of water and fertilizer has a positive effect on optimizing apple water and fertilizer management. Principal component analysis showed that the magnetoelectric treatment combined water and fertilizer mainly affected apple yield, water and fertilizer use efficiency and vitamin C content related to quality. This study provides valuable guidance for improving water and fertilizer productivity, crop yield and quality in extreme arid areas of Xinjiang by using Magnetoelectric water irrigation.

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Section: Introductionmentioning

confidence: 99%

Optimization of irrigation and fertilization of apples under magnetoelectric water irrigation in extremely arid areas

Duan,

Wang,

et al. 2024

Front. Plant Sci.

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“…The effect of rainfall pattern variability on crop productivity is associated with the prevalence of rainfed agricultural systems. For example, rice produced under rainfed conditions is highly susceptible to soil water deficits, especially during certain phenological stages, and is therefore severely affected by water scarcity (Pardo et al, 2020;Zhu et al, 2023). In addition to the direct effect of precipitation on plants, there is also an indirect effect on the dynamic population of pests and diseases, such as bacterial panicle blight (BPB) in rice, a disorder caused by Burkholderia glumae and Burkholderia gladioli (Hoyos et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Identifying Climatic Change Adaptations of Crops in Orinoco Basin Oxisols Through Study of Soil Water Availability

Gallo,

Loaiza-Úsuga,

Gutiérrez Rodríguez

et al. 2024

J. Ecol. Eng.

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Crop yield variations in the Orinoquía region -Colombia, are primarily associated with extreme precipitation events. Therefore, studying crop water supplies under naturally variable climate conditions is fundamental in an actual climatic change context. Rainfall data collected in the Quenane sub-basin were analyzed to understand the soil water dynamics in the Orinoco catchment. The basin covers 179 km 2 and consists of the piedmont landscape (Eastern Mountain Range) of the Villavicencio Municipality, Department of Meta. This study analyzes the rainfall variability using Pearson correlation analysis, the Mann-Kendall trend analysis, and soil water balance to determine the implications of these factors in crop performance at the basin scale. The results indicated that the spatial distribution of rainfall in the basin responds to a longitudinal average variation of precipitation and that this response is more accentuated (i.e., greater rainfall) toward the west of the basin. Despite the basin being located in the tropical zone, no evidence was found regarding the effect of the El Niño Southern Oscillation on rainfall patterns. Yet, the temporal analysis revealed some years with extreme rainfall values and high-uncertainty levels during transitions between wet and dry periods. During these transition periods, a greater potential for effects on farm yields exists due to the variable cumulative rainfall observed during recent years. The time series trend analysis revealed changes in rainfall patterns at different scales (weekly and yearly) and distribution based on the decrease of rainy days per week and year. This trend is much more accentuated during the second half of the year, generating uncertainty and reducing farm yields throughout the basin.

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“…Scholars globally have extensively studied the light response mechanisms of staple crops such as wheat, corn, and rice [26][27][28]. Nonetheless, studies on the influence of organic fertilizer coupled with irrigation using fresh water and brackish water on the light response traits of pakchoi, as well as the suitability of various light response models, remain sparse.…”

Section: Introductionmentioning

confidence: 99%

Effects of Organic Fertilizer on Photosynthesis, Yield, and Quality of Pakchoi under Different Irrigation Conditions

Lin,

Wei,

Wang

et al. 2024

Plants

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Water scarcity and the overuse of chemical fertilizers present significant challenges to modern agriculture, critically affecting crop photosynthesis, yield, quality, and productivity sustainability. This research assesses the impact of organic fertilizer on the photosynthetic attributes, yield, and quality of pakchoi under varying irrigation water conditions, including fresh water and brackish water. Findings reveal that the modified rectangular hyperbolic model most accurately captures the photosynthetic reaction to organic fertilization, outperforming other evaluated models. The maximum net photosynthesis rate (Pnmax), yield, soluble sugar (SS), and soluble protein content (SP) all exhibited a downward-opening quadratic parabolic trend with increasing amounts of organic fertilizer application. Specifically, under fresh-water irrigation, the optimal Pnmax, yield, SS, and SP were obtained at organic fertilizer rates of 65.77, 74.63, 45.33, and 40.79 kg/ha, respectively, achieving peak values of 20.71 µmol/(m2·s), 50,832 kg/ha, 35.63 g/kg, and 6.25 g/kg. This investigation provides a foundational basis for further research into the intricate relationship between water salinity stress and nutrient management, with the goal of crafting more sophisticated and sustainable farming methodologies. The insights gained could significantly influence organic fertilizer practices, promoting not only higher yields but also superior quality in agricultural outputs.

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Photosynthetic and hydraulic changes caused by water deficit and flooding stress increase rice’s intrinsic water-use efficiency

Cited by 6 publications

References 60 publications

Optimization of irrigation and fertilization of apples under magnetoelectric water irrigation in extremely arid areas

Optimization of irrigation and fertilization of apples under magnetoelectric water irrigation in extremely arid areas

Identifying Climatic Change Adaptations of Crops in Orinoco Basin Oxisols Through Study of Soil Water Availability

Effects of Organic Fertilizer on Photosynthesis, Yield, and Quality of Pakchoi under Different Irrigation Conditions

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