Comparison of some photosynthetic characters between two hybrid rice combinations differing in yield potential

被引：41

作者：

Jiang, H

Wang, XH

Deng, QY

Yuan, LP

Xu, DQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China

[2] China Natl Hybrid Rice Res & Dev Ctr, Changsha 410125, Peoples R China

来源：

PHOTOSYNTHETICA | 2002年 / 40卷 / 01期

关键词：

carboxylation efficiency chlorophyll; compensation CO2 concentration; compensation irradiance; dark respiration; net photosynthetic rate; Oryza sativa; photosystem; 2; quantum yield; stomatal conductance;

D O I：

10.1023/A:1020135416177

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Photosynthetic characteristics of two hybrid rice combinations, Peiai 64S/E32 and Shanyou 63, were compared at the panicle differentiation stage. As compared with Shanyou 63, the new combination Peiai 64S/E32 showed a significantly higher net photosynthetic rate (P-N), apparent quantum yield of carbon assimilation (Phi(c)), carboxylation efficiency (CE), and photorespiratory rate (R-p) as well as leaf chlorophyll content, but a significantly lower dark respiration rate (RD) and compensation irradiance (I-c). It also showed a slightly higher photochemical efficiency (F-v/F-m and DeltaF/F-m') of photosystem 2, a lower non-photochemical quenching (q(N)), and a similar CO2 compensation concentration (F) as compared to Shanyou 63.

引用

页码：133 / 137

页数：5