采摘技术恰当与否是乌桕能否增产的重要环节。目前,对桕籽的采摘方式、强度以及细致程度很不一致。有的地方为了采收方便起见,砍大枝采摘果实,造成乌桕的隔年结实;有的地方光采果穗,不采小枝;也有的则因桕籽量少而不进行采摘。其结果均导致桕籽的产量逐年减少。为了正确地掌握乌桕采摘技术,1977年以来,我们对10—12年生铜锤桕、大粒葡萄桕、分水葡萄桕、大粒鸡爪桕和小粒鸡爪桕的分枝与结实习性等进行了调查研究,并对千粒重与总枝数、千粒重与产量、总枝数与产量等进行了相关分析。其结果如下: 一、分枝习性与结果关系乌桕分枝习性有稀疏和稠密之分,一般来说,大果、大穗、长穗类型(如铜锤桕,大粒鸡爪桕,大粒葡萄桕,水分葡萄桕),具有枝 Appropriate picking technology or not is an important part of Wujiao can increase production. At present, the harvesting methods, intensity and meticulousness of the seeds are very different. In some places, it is convenient for harvesting to cut the big branch to pick the fruit, resulting in the next year’s vigorous growth of the fruit. In some places, the fruit is picked up instead of twigs; while others are not picked because of the small amount of seed. As a result, the yield of goose seeds is reduced year by year. In order to correctly grasp the technology of picking pomfret, we have investigated the branching and storability of 10-12-year-old copper hammer mullets, large grapes, water grapes, large-grained chicken claw and small-grained claw from 1977 The correlations between 1000-grain weight and total number of branches, 1000-grain weight and yield, total number of branches and yield were analyzed. The results are as follows: First, the relationship between the branch habits and the results of the habit of clam 乌 sparse and dense branches, in general, large fruit, big spike, long spike type (such as copper hammer 桕, , Water grapefruit), with branches