CPPU对促进猕猴桃果实增大的研究Ⅰ．CPPU的使用浓度和方法

Studies on the Use of CPPU for Enhancing the Fruit Growth of the KiwifruitⅠ.Concentrations and application methods

通过多年、多点试验，研究了ＣＰＰＵ促进猕猴桃果实增大的效果。结果表明：５－４０ｍｇ·１￣（－１）的各种浓度的处理都明显地增大了猕猴桃的果实，效果异常突出，增长幅度在２０％－１９０％之间。１０－３０ｍｇ·１￣（－１）处理效果之间似乎没有显著差异，推荐最适使用浓度为１０－２０ｍｇ·１￣（－１）。浸果和果面喷两种方法都可采用，关键是处理要均匀。ＣＰＰＵ与其它植物生长调节剂混用可以提高促进果实增大的效果，在生产上有更大的潜力。

Experirnents of CPPU on the kiwifruit growth were conducted in different climate regions. The resultsshowed that all the concentrations tested , from 5 to 40 mg·1￣(-1) , were effective for increasing the fruit size,the optiomum concentration recommanded was 10-20mg·1￣(-1). Both fruit dipping and spraying were effec-tive,but attention should be paid to the evenly distribution of the chemical on the surface of treated fruit.