摘要
利用水培试验,研究了剪根等处理后水稻群体光合速率的动态变化.结果表明,剪上层根使子粒灌浆盛期的群体光合速率下降24 41%～33 26%,单株产量降低22 17%.说明在经济产量形成期,上层根对群体光合速率的影响最大.
The effects of wiping out roots on rice canopy apparent photosynthetic rate (CAP) after heading were studied with solution experiments. The results showed that the CAP of rice after wiping out upper root is decreased by 24.41%～33.26 %, the yield of single plant is also decreased by 22.17 %.This indicates that the upper roots have the greatest effect on CAP after heading.
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2005年第2期127-130,共4页
Journal of Henan Agricultural University
基金
国家自然科学基金(30471018)
河南省杰出青年科学基金资助项目(0512001900)
关键词
水稻
根系
群体光合速率
rice
root
canopy apparent photosynthetic rate
