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黄桃是近几年开发的专用罐桃品种,在制罐上具有独特的色、香、味,深受国内外人民的喜爱。但是,黄桃在北方生长较旺盛,存在着冻花芽现象,影响产量,难以在生产上大面积栽培。因此,我们在引进抗寒品种的同时,试想能用一种化学生长调节剂,抑制枝稍的延伸生长,促进花芽分化,提高花芽质量,减少冻花芽的发生。材料和方法试验品种为早紫,十四年生树,1998年春季冻花芽率为32.2％,是受冻率较高的品种。PP_(333)稀释为750ppm,1500ppm,3000ppm,以清水为对照。5月16日用手摇喷雾器喷于叶面,设单株小区重复十次,此时新
Yellow peach is a special pot peach variety developed in recent years. It has unique color, aroma and taste in can making and is deeply loved by people both at home and abroad. However, yellow peach grows vigorously in the north, there is the phenomenon of frozen flower buds, affecting the yield, it is difficult to cultivate a large area of production. Therefore, we introduced the cold-resistant varieties at the same time, imagine using a chemical growth regulators, inhibiting the extension of a small branch of growth, and promote flower bud differentiation, improve the quality of flower buds and reduce the occurrence of frozen flower buds. Materials and methods The test varieties were early violet and fourteen year old trees. The rate of frozen flower buds in spring 1998 was 32.2%, which was the one with higher rate of freezing. PP_ (333) diluted to 750ppm, 1500ppm, 3000ppm, with water as a control. May 16 Sprayed on the foliage with a hand sprayer, set single plant plots ten times, this time new