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生产实践和试验表明,许多葡萄品种利用二茬结果后,通常能增产10-30%,甚至可达38%,但是二茬果的增产效果与夏季修剪技术是分不开的。本试验(1960-1963年)主要研究二茬果的发生规律和利用价值,为葡萄生产制定一年二茬结果技术提供理论依据。其主要内容有:(一)冬芽分化动态及其与夏季修剪技术的关系。(二)冬芽和夏芽的異质性。(三)二茬果对主梢果品质和产量的影响。(四)促使二茬结果的技术措施。
Production practices and tests show that after many grapes use the second crop result, the yield can usually be increased by 10-30% or even up to 38%. However, the yield increase of the second crop is inseparable from the summer pruning technique. This experiment (1960-1963) mainly studied the occurrence and utilization value of the second crop and provided the theoretical basis for establishing the second crop yielding technology for grape production. Its main contents are: (a) winter bud differentiation and its relationship with summer pruning techniques. (B) the heterogeneity of winter buds and summer buds. (C) the second crop of fruit on the main fruit quality and yield impact. (D) to promote the results of the second crop of technical measures.