不同药剂处理对灵武长枣坐果与光合指标的影响

Effect of different chemical treatments on fruit setting and photosynthetic indexes in Lingwu Long Jujube

为了提高灵武长枣坐果率和单果质量,采用以色列专用肥(0.3%)、赤霉素(30×10-6)、爱乐壮(ALA、5-氨基乙酰丙酸)喷施处理大田种植的灵武长枣,测定其坐果率、光合速率、叶绿素含量、吊果量、单果质量等指标,分析不同药剂处理对灵武长枣坐果与光合作用的影响。结果表明:1‰ALA处理下的坐果率提高近1倍,且叶绿素含量、单果质量均高于对照;以色列肥处理下灵武长枣叶片的水分利用效率比对照高40%左右。因此推荐将1‰ALA和以色列专用肥应用于灵武长枣的生产实践中。

In order to improve fruit setting rate and single fruit mass of Lingwu Long Jujube, Lingwu Long Jujube planted in the field were sprayed with Israeli Special Fertilizer（0.3%）, gibberellin（30×10- 6）, and Aiyuezhuang（ALA, 5-aminolevulinic acid）, some indexes were determined, including fruit setting rate, photosynthetic rate, chlorophyll content, hanging fruit number, single fruit mass, and so on, and effects of different chemical treatments on fruit setting and photosynthesis of Lingwu Long Jujube were analyzed. The results showed that the 1‰ ALA treatment could increase fruit setting rate of nearly one time, and both chlorophyll content and single fruit mass were higher than those of the control. Leaf water use efficiency of Lingwu Long Jujube in the Israel Special Fertilizer treatment was higher about 40% higher than that of the control. Therefore 1‰ ALA and Israeli Special Fertilizer were recommend applying in production practice of Lingwu Long Jujube.