不同需冷量桃品种营养生长和光合特性研究Study on vegetative growth and photosynthetic characteristics of different chill-requirement peach cultivars
曹珂;王力荣;朱更瑞;方伟超;
摘要(Abstract):
为了探明温带地区低需冷量桃早期丰产性的生理机制,以不同需冷量桃植株为试材,对其在郑州地区下半年生长季节的光合特性进行了研究。结果表明,在相同的生长期,低需冷量桃表现出较中、长需冷量种质更高的营养产物积累。分析其营养生长的影响因子认为,光合叶面积与植株营养生长相关性不明显,单叶净光合日总量才是低需冷量种质营养旺盛积累的主要原因,而单叶净光合日总量是植株较低的暗呼吸速率、光补偿点和较高的10:00光合速率、水分利用效率的综合表现。低需冷量桃在温带地区的这些光合特性可能是由它固有的遗传基础和植株对温带地区环境调节共同作用的结果。
关键词(KeyWords): 桃;低需冷量;生态适应性
基金项目(Foundation):
作者(Author): 曹珂;王力荣;朱更瑞;方伟超;
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DOI:
参考文献(References):
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