Record Details

Impact of high temperature stress on photosynthetic characteristic and yield of rice (Oryza sativa) at heading

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Impact of high temperature stress on photosynthetic characteristic and yield of rice (Oryza sativa) at heading
 
Creator XIE, XIAO JIN
LI, BIN BAI
SHEN, SHUANG HE
 
Subject Heading; High temperature stress; Photosynthetic characteristic; Rice; Yield
 
Description To estimate impact of high temperature stress on photosynthetic characteristic and yield in rice (Oryza sativa L.), a pot experiment was conducted during 2008 in environment-controlled chambers with two rice cultivars (Yangdao 6 and Nanjing 44) under high temperature stresses (35°C/3d, 35°C/5d, 39°C/3d and 39°C/5d) at heading. The results showed that rice grain yield, chlorophyll content, net photosynthetic rate (NPn), superoxide dismutase content (SOD) and leaf area index (LAI) presented a sharply decline, and the relative conductivity, malondialdehyde content (MDA) increased gradually with the elevation of stress temperature and extension of stress time. The increasing rate (reduction rate) of some physiological and biochemical indexes in Yangdao 6 were lower than that in Nanjing 44 compared with the CK under the same temperature stress. It was showed that response of Nanjing 44 to high temperature was stronger than that of Yangdao 6. In accordance with correlation analysis, the rice grain yield showed a positive correlation with NPn and LAI (P
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-06-05
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19014
 
Source The Indian Journal of Agricultural Sciences; Vol 82, No 6 (2012)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19014/9362
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences