HPW增产剂在矮化富士苹果大改形树上的应用效果

Study on Effects of Spraying HPW on the Increase of the 'Fuji' apple's Products

对8年生M26矮化中间砧富士苹果密植园应用大改形技术后,当年喷布HPW增产剂试验研究,结果表明,在花后10d和25d连喷两次1400mg/kg,有效的改变了树体内营养状况,当年花序座果率比对照提高52.4%,短枝率高出对照29.1%,短枝叶片大,光能效率高,短枝大叶光合速率提高50%,单果重增加9.9g,果形明显表现高桩,颜色鲜艳,单株产量比对照提高54%。

The experience was carried on the octennial compact trees with interstock ‘M26’ which shapes were just changed greatly. The results showed that the nutrient levels were improved obviously when the 1400mg/kg HPW were sprayed in the tenth and twenty-fifth day after blooming; it increased the fruit set percentage 52.4% and the dwarf shoot ratio 29.1%; leaves on dwarf shoots were bigger than control and the utilization ratio of sunlight rose; photosynthesis of dwarf shoots, the weight of single fruit and the product of single tree increased 50%, 9.9%, 54% respectively; the shape index of fruit was added and the fruit was more colorful.