花铃期遮光对棉花产量、品质及光合生理特性的影响

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新疆的果棉间作模式逐渐扩大,果树的荫蔽作用在一定程度上降低了棉花的产量和品质。因此,为研究弱光条件下棉花的生长发育特征、光合产物的积累与分配、光合特性、产量及品质,于2011年4月至10月在新疆喀什市岳普湖县下巴扎乡5村7组分析研究了花铃期不同遮光程度对棉花生长发育、产量及其构成因素、品质等的影响,并对棉花的光合作用、植株地上部干物质和养分的积累与分配特点进行了比较详细的分析研究,旨为新疆果棉栽培提供理论依据。其主要试验结论如下:1.棉花植株地上部各器官的干物质和养分N、P、K素的积累,随着
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