水稻根冠功能对水分胁迫及复水的补偿响应  

Compensation Effects of Water Stress and Re-watering on the Function of Root Shoot

作　　者：郝树荣[1] 郭相平[2] 张展羽[2] 王为木[2] 

机构地区：[1]河海大学南方地区高效灌排与农业水土环境教育部重点实验室,南京210098 [2]河海大学水利水电学院,南京210098

出　　处：《农业机械学报》2010年第5期52-55,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50309003)

摘　　要：通过盆栽试验,研究了水分胁迫及复水对水稻根冠功能的补偿响应。结果表明:水稻旱后复水根冠功能的补偿效应明显,尤以分蘖末期短历时重旱、拔节初期短历时轻旱补偿效应最佳。旱后复水新生器官生理活性的提高是水稻产生补偿效应的主要贡献者。A research was carried out to determine the compensation effects of water stress and re-watering on the function of root shoot by pot experiments.The results show that the post-drought re-watering has obvious compensation effects to rice on the function of root shoot,which is particularly significant after short-duration heavy drought at the late tillering stage and light drought at the early jointing stage.Post-drought re-watering mainly embodies compensation effects in improving the physiological activity of neonatal crop organ.

关 键 词：水稻 水分胁迫 补偿效应 根系活力 光合速率 

分 类 号：S511[农业科学—作物学]