| 摘要: |
| 本文中总结的夏季修剪试验结果是我们进行的葡萄生长与结果相关性系统研究的一部分成果。在这一部分研究中,观察了玫瑰香葡萄开花、生理落果和种子败育的动态及其相互关系,证明了在开花坐果间期,梢尖幼叶的存在与坐果及种子发育之间的矛盾,适时去除梢尖幼叶诱导有籽果坐果和种子形成的作用与环状剥皮诱导无籽果坐果和种子败育适成鲜明对照,对于这一现象作了初步的分析探讨;发现了生长势不同的新梢的原始结果潜力和对夏剪反应的敏感性不同;根据结果枝在盛花期对摘心最敏感确定了坐果的临界时期,并对结果枝上不同部位及年龄的叶片的功能进行了分析,为适时适度摘心提供理论依据;在不同处理的对比分析中发现浆果品种与摘心后产量水平的差异有较明显的关系,在新梢多次截顶试验中证明了浆果发育的中、后期,同化器官与浆果品质之间的矛盾统一关系已居于主要地位,轻度多次截顶有可能保证或甚至改善浆果品质而不损害树势。 |
| 关键词: 种子败育 生理落果 夏季修剪 浆果发育 坐果期 玫瑰香葡萄 生长势 摘心 结果枝 截顶 |
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| STUDIES ON THE EFFECTS OF SUMMER PRUNING ON FRUITING,GRAPE QUALITY AND VINE CAPACITY OF MUSCAT HAMBURG GRAPEVINES |
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| Abstract: |
| A series of experiments were conducted to deal with the summer pruning effects on Muscat Hamburg grape with special emphasis on growth and fruiting interrelationship.The main results obtained were as follows: Bloom,berry-drop and seed abortion appeared as three single sigmoid curves occurring in succession and overlapping one another. The peak of berry-drop occured between the 8th & 12th day after the beginning of bloom and the peak of seed abortion occured in the first few days of the 4th week after the be... |
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