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近几年福桔、雪柑栽培中有一部分幼龄果园存在不结果或少结果现象,严重影响了果农的近期收入和生产积极性。究其原因,主要是砧木种类不同:种植枳壳砧(半矮化型)的结果良好,而种植福桔砧(乔化型)的树势强旺,营养生长与生殖生长不平衡,当抽发大量夏梢时,生理落果严重,结果率极低。为提高福桔砧柑桔的早期结果率。我场于1990年和1991年分别在本场(福州)和闽侯洋里乡坤带柑桔园进行幼龄福桔砧福桔、雪柑保果试验,试验树结果量比对照提高6～8倍。现将有关技术措施介绍如下。
In recent years, Fucai and Xue-kao cultivars have been shown to have some results of inefficient or less results in young orchards, seriously affecting their recent income and production enthusiasm. The reason is that the rootstocks are mainly of the different species: the results of cultivating Citrus aurantium (semi-dwarf) are good, and the vigor of the plant growing Aurantia ancestral (Qiao-type) is strong, and vegetative and reproductive growth are unbalanced. When a large number of summer shoot hair, physiological drop serious, the result rate is very low. In order to improve the early outcome rate of citrus orange fruit. My field in 1990 and 1991 respectively in the field (Fuzhou) and Minhou Yangliu Kun-band citrus orchards for young Fukutake ankle Fukuyama citrus fruit preservation test results of the experimental tree 6 to 8 times higher than the control . Now the technical measures described below.