柑桔树的落花落果严重,是历来柑桔产区提早结果、年年丰产的一个主要矛盾。湖北是我国柑桔发展的一个新区,大部是解放后1960年以来发展的幼树。甜橙的结果较迟,早期落果严重。温州蜜柑系无核的优良品种,部分花粉、卵子早夭,着果率一般仅占开花数的4—5％。在党的“以粮为纲,全面发展”的方针指导下,广大贫下中农要求提早结果,提 Citrus trees fall seriously, is always the early results of citrus growing areas, annual yield a major contradiction. Hubei is a new area for the development of citrus in our country, most of which are saplings developed since 1960 after liberation. Late results of sweet orange, early serious fruit drop. Wenzhou Satsuma non-core fine varieties, some of the pollen, eggs die early, the fruit rate is generally only 4-5% of the number of flowering. Under the guideline of “taking grain as the key link and developing in an all-round way”, the majority of poor and middle peasants have requested early results,