水稻根系与群体光合速率的关系研究  

Relationship between Root and Canopy Apparent Photosynthetic Rate in Rice

作　　者：赵全志[1] 熊淑萍[1] 吕强[1] 高桐梅[1] 殷春渊[1] 宁惠峰[1] 

机构地区：[1]河南农业大学河南省作物生长发育调控重点实验室,河南郑州450002

出　　处：《河南农业大学学报》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)

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.

关 键 词：水稻 根系 群体光合速率 

分 类 号：S511[农业科学—作物学]