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选用无锡不同成熟期品种为试材,观察桃生理落果的时期、数量、标志及其原因分析,进而提出提高座果率的措施。桃果实发育经测定结果;第一期为果实相对量迅速生长期,约36天,早熟品种增重较快。第二期为果实缓慢生长期,早、中、晚熟品种经历天数差异大,它决定果实发育期的长短。第三期为果实绝对量迅速生长期,18～30天,此期果重占果实总重的70—79％,中晚熟品种增重最显著。据此提出相应的栽培措施。 白凤桃为试材,经留果量试验,提出依其树龄、每亩种植株数、树势、枝条负荷量等确定合理留果量的标准,达到既有较高产量,又提高一级果的比例,并有一定的发枝量。
Selection of different maturity varieties in Wuxi as the test material to observe the peach physiological deciduous period, quantity, signs and analysis of its causes, and then put forward measures to improve the rate of fruit set. Peach fruit development was determined by the results; the first phase of rapid relative growth of fruit, about 36 days, premature varieties of faster weight gain. The second phase is the slow growth of fruit, early, middle and late varieties experienced large differences in the number of days, which determines the length of the fruit development period. The third period is the rapid growth of the absolute amount of fruit, 18 to 30 days, accounting for 70-79% of the total fruit weight, the most significant weight gain in late maturing varieties. Accordingly, the corresponding cultivation measures are proposed. Baifeng peach was used as test material, and after leaving fruit volume test, the standard of determining the reasonable amount of retained fruit according to its age, the number of plants planted per acre, tree vigor and branch load was proposed to reach the ratio of both higher yield and higher fruit , And have a certain amount of hair.