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- W2356554594 abstract "【Objective】To construct the cotton water stress index(CWSI) and determine the suitable water logistics approach,in order to provide theoretical basis for improving cotton yield and quality under salinity field.【Method】The two-year experiments were conducted with Sumian 12(salinity-sensitivity) and CCRI-44(salinity-tolerance) at Pailou experimental station of Nanjing Agricultural University. Seven kinds of salts(NaCl, Na2CO3, NaHCO3, CaCl2, MgCl2, MgSO4, and Na2SO4), were mixed into natural dried, sieved soils at an even molar ratio, forming soils with five levels of salinity, namely, CK(1.25 dS·m-1), 0.35%(5.80 dS·m-1),0.60%( 9.61 dS·m-1), 0.85%(13.23 dS·m-1), and 1.00%(14.65 dS·m-1), respectively. The effects of soil salinity rates on the water contents and temperature of cotton functional leaves were studied and quantitative relationships between leaf-air temperature difference and vapor pressure difference was determined.【Result】As the soil salinity rates increasing, the transpiration rate, water content and net photosynthetic rate of functional cotton leaves decreased and the leaf temperature increased. The lower equation of the cotton water stress index was set up in 1.25 dS·m-1salinity rate(well watered), and the cotton water stress index based on the above lower equation under different salinity rates was constructed.【Conclusion】Comprehensive analysis the relationship between cotton water stress index and leaf water content and net photosynthetic rate under different soil salinity rates, and found that the cotton water stress index is a good indicator to detect cotton water stress in salinity field. So, it could be applied to monitor cotton water stress using cotton water stress index, in order to provide theoretical basis for determine suitable water logistics approach under salinity field." @default.
- W2356554594 created "2016-06-24" @default.
- W2356554594 creator A5074195634 @default.
- W2356554594 date "2013-01-01" @default.
- W2356554594 modified "2023-09-28" @default.
- W2356554594 title "Changes of Related Physiological Characteristics of Cotton Under Salinity Condition and the Construction of the Cotton Water Stress Index" @default.
- W2356554594 hasPublicationYear "2013" @default.
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