中国水稻科学

中国水稻科学

• 研究报告 • 上一篇    下一篇

水、陆稻在水田、旱地栽培的生态适应性研究：II．稻株碳、氮代谢的生态适应性观察

郑丕尧；杨孔平；王经武；周殿玺   

  1. 北京农业大学；北京 100094
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1990-06-17 发布日期:1990-06-17

Studies on the Eco-adaptability of Lowland and Upland Rice Varieties to Paddy and Upland:Ⅱ. Carbohydrate Nitrogen Metabolism

Zheng Piyao; Yang Kongping; Wang Jingwu; Zhou Dianxi   

  • Received:1900-01-01 Revised:1900-01-01 Online:1990-06-17 Published:1990-06-17

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摘要： 旱种条件下，不论水稻还是陆稻，全糖、全氮含量均高于水种条件，醇溶糖占全糖的比例较高，碳／氮比低：陆稻的醇溶糖占全糖的比例远远高于水稻，这一特性很少随种植条件的改变而产生很大的变化，这可能是其对旱地适应性较强的生理原因之一。同时发现，贮藏性物质的增加是水稻旱种条件下的重要生理表现。

关键词: 水稻, 陆稻, 水田, 旱地, 生态适应性, 碳氮代谢, 水稻旱种

Abstract: The eco-adaptability of rice (Oryza saliva L. ) to paddy and upland were studied with three varieties of lowland and upland rice under paddy and upland in 1985—1986. On upland, the rice plants expressed high concentration in carbohydr ate and nitrogen, high ratio in soluble sugars and low C/N ratio. The upland rice variety consisted of much more soluble sugars than that of lowland rice varieties. It was a eco-adaptability of rice plants to upland for increasing storage, especially in soluble sugars. Those rice varieties, which was with high ratio in soluble sugars, might be adapted to upland.

Key words: Lowland rice, Upland rice, Paddy field, Upland field, Eco-adaptability, Carbon and nitrogen metabolism, dry cultivation