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脐橙是甜橙优良品种之一,果实无核,汁胞脆嫩,风味佳,但落花落果严重,产量较低。因此掌握脐橙花、果脱落规律,采取有效措施,控制生长和结果对提高脐橙产量具有重要意义。一、材料和方法1971—73年,在重庆北碚我所试验场红楼区脐橙园,对6—8年生枳砧华盛顿脐橙进行了观察记载。1971—72年在花期和幼果期每隔2—3天调查一次,1973年改为每天调查,直至成熟。记载蕾、花、果的脱落数量,按脱落的不同类型分别统计百分率。供试植株10株,
Navel orange is one of the fine varieties of sweet orange, fruit without core, juice cells crisp, good flavor, but the drop is serious, yield is low. Therefore, to grasp the navel orange flower, fruit off the law, to take effective measures to control the growth and the results on the production of navel orange is of great significance. I. Materials and Methods In 1971-73, observational records were made on orange peonies of 6-8-year-old orange lotus in Hongli District, Honglou District, Beibei, Chongqing, China. 1971-72 in the flowering and young fruit period survey every 2-3 days in 1973 instead of daily surveys until maturity. Record the number of buds, flowers, fruit off, according to different types of loss statistics, respectively, percentage. The test plants 10,