植物生长调节剂在香梨滴灌中的应用研究

Study on Application of Plant Growth Hormone on Fragrant Pear under Drip Irrigation

通过对库尔勒香梨进行叶面喷施多效唑和黄腐酸制剂,研究了两种植物生长调节剂对树体生长发育的抑制和促进作用以及对果实品质影响,结果表明:多效唑与黄腐酸制剂混合叶面喷施,对香梨新梢伸长的抑制效应和香梨新梢横向生长的促进效应显著于单独喷施多效唑的效应,但对叶面积生长的抑制效应却小于单独喷施多效唑的效应。喷施黄腐酸制剂有助于叶片含水量和叶绿素含量的提高,在同一生长期,叶绿素含量与叶片含水量成正相关关系。多效唑与黄腐酸制剂混合喷施,更好地改善了果实品质,提高了果形指数。

Through spraying PP333 and yellow humic acid on leaf, the acceleration and inhibition effect of two types of plant growth hormone on Korla fragrant pear growth and fruit quality are studied in this paper. The experiment results indicate that the inhibition effect on branch length and accelerate effect on branch thickness through spraying mixture of PP333 and yellow humic acid on leaf are superior to spraying PP333 alone, but the inhibition effect on leaf area growth is contrary. Yellow humic acid can increase the leaf water content and chlorophyll content, which present positive correlation at same growth stage. Through mixed spray PP333 and yellow humic acid on leaf, fruit quality is well improved and fruit shape index is enhanced.