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生态学杂志 ›› 1998, Vol. ›› Issue (3): 20-26.

• 研究报告 • 上一篇    下一篇

不同灌溉方式对水稻产量与生理特性的影响

陈国林, 王人民, 王兆骞   

  1. 浙江农业大学, 杭州310029
  • 收稿日期:1997-11-10 修回日期:1998-02-09 出版日期:1998-06-10

Effects of Different Irrigation Patterns on the Yield and Physiological Characteristics of Rice

Chen Guolin, Wang Renmin, Wang Zhaoqian   

  1. Zhejiang Agricultural University, Hangzhou 310029
  • Received:1997-11-10 Revised:1998-02-09 Online:1998-06-10

关键词: 胶州湾, 六丝钝尾虾虎鱼, 摄食生态, 食物组成, 典范对应分析

Abstract: A two years'experiment was carried in the concrete troughs which can exactly control the water quantity. The results showed that the proper water saving irrigation patterns could regulate the water status internal the rice plants. The relative water content of leaves, especially the rate of free water to total water contents, under water saving irrigation were significantly higher than that of normal irrigation.The senescence of lower leaves delayed and the function time of photosynthetic source in reproductive stages increased too. The activity of root system at reproductive stages raised and the contradiction between high yield and early senescence of roots was coordinated. Enhancement of the dry matter accumulation in reproductive stages favored the grain yield development. Thus, the water saving irrigation resulted not only in water saving but also in high yield. An optimized irrigation pattern was discussed in the paper.

Key words: Jiaozhou Bay, Amblychaeturichthys hexanema, feeding ecology, diet composition, canonical correspondence analysis (CCA).