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1979～1983年在大连市和泗水县对‘国光’、‘金冠’品种进行了化学疏花疏果试验。大连市‘国光’苹果较好的疏除方案是花蕾膨大期喷300ppm乙烯利,开始落瓣后10天喷或不喷20ppm萘乙酸,到6月下旬至7月上旬人工补充疏果。泗水县适于‘国光’的疏除方案是花蕾膨大期喷300ppm乙烯利,开始落瓣后10天喷20ppm萘乙酸+300ppm乙烯利或单喷20ppm萘乙酸。两地区‘金冠’苹果较好的疏除方案是开始落瓣后10天喷750ppm西维因+10ppm萘乙酸。 本文阐述了这些处理对‘国光’、‘金冠’品种的疏除效应、疏除时间、果实等级、单果重和产量以及经济效益的影响。
From 1979 to 1983 in Dalian and Surabaya County ’Guoguang’, ’Golden Delicious’ varieties of chemical thinning and fruit thinning test. Dalian City, ’Guoguang’ apple better sparse program is bud swelling period spraying 300ppm ethephon, 10 days after the beginning of falling petal spray or do not spray 20ppm naphthalene acetic acid, from late June to early July Artificial supplementary thinning. Surabaya County is suitable for the ’national light’ of the sparse program is bud bulging 300ppm ethephon spray, 10 days after the beginning of falling petal spray naphthalene 20ppm naphthalene 300ppm ethylene or single 20ppm NAA. The preferred antiphlogistic regimen for the ’Golden Delicious’ apples in both regions is to spray 750 ppm of XIV + 10 ppm NAA 10 days after the beginning of the fall. This paper describes the effects of these treatments on the allelopathic effects, the timing of tree shrubs, fruit grade, fruit weight and yield, and economic benefits of ’Guoguang’ and ’Golden Delicious’ varieties.