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本文研究了叶面喷施几种植物生长调节剂 (GA3、NBT、6 -BA、TIBA、PP333)对小麦分蘖、生育后期生理指标、产量构成因素和产量的影响。结果表明 :合理的使用这些植物生长调节剂可以不同方式的影响冬前小麦的分蘖能力 ,提高生育后期旗叶细胞的自我保护能力、光合能力及对有机物的利用和转运能力 ,延长了叶片的功能期 ,有利于籽粒灌浆 ,并能较好的协调产量构成因素间的关系 ,提高作物产量。总体效果看 :PP333和 6 -BA综合效果较理想 ;TIBA对提高千粒重有显著作用
In this paper, the effects of foliar application of several plant growth regulators (GA3, NBT, 6-BA, TIBA and PP333) on tillering, physiological indices, yield components and yield of wheat were studied. The results showed that rational use of these plant growth regulators could affect the tillering ability of winter wheat in different ways and enhance the self-protection ability, photosynthetic capacity and utilization and transport ability of flag leaf cells in post-growth stage, prolonging the function of leaves Period, is conducive to grain filling, and can better coordinate the relationship between yield components, improve crop yield. The overall effect to see: PP333 and 6 -BA comprehensive effect is more ideal; TIBA to improve the 1000-grain weight has a significant role