摘要
本试验研究了喷施多效唑对富士苹果幼树影响的规律,结果表明:喷施多效唑可以控制富士苹果幼树新梢旺长,提高当年中短枝的比例及次年座果率,控制秋梢旺长的喷布适期为盛花后12weeks(7月上旬),浓度为600mg·kg^(-1)左右。试验结果还表明:喷施多效唑与乙烯利、主干环剥配合使用,可以增加富士苹果幼树的枝量、花量及次年的座果数。以盛花后3weeks 喷2000mg·kg^(-1)乙烯利+盛花后7weeks 主干环剥+盛花后12weeks 喷施600mg·kg^(-1)多效唑处理效果最佳。
In this test the influence of MET to the young trees of Fuji apple was stu- died.The results suggested that MET could control the vigorous growth of the young shoots,increase the proportion of the middle and short branchlets and raise the fruit setting ratio in the next year.The suitable time to spray the re- agent was the 12th week after the full flower period(the first ten-day of Ju- ly),and the appropriate concentration was about 600mg·kg^(-1).The test also showed that the cooperation application of spraying MET and ethrel and ringing could increase the quantity of shoot and flower in the young tree,and the fr- uit setting number in the next year.The following treatment could produce the best effect:spraying ethrel(2000mg·kg^(-1))at the 3rd week+ringing at the main stem at the 7th week+MET(600mg·kg^(-1))at the 12th week after the full flower period.
关键词
多效唑
乙烯利
主干环剥
苹果
young Fuji apple tree
MET
ethrel
mairt stem ringing
flower bud formalion
fruit set
