文献类型：期刊文献

英文题名：ANALYSIS OF GENETIC AND GENOTYPE x ENVIRONMENT INTERACTION EFFECTS FOR AGRONOMIC TRAITS OF RICE (ORYZA SATIVA L.) IN SALT TOLERANCE

作者：Zhou, H. K.[2];Hayat, Y.[3];Fang, L. J.[2];Guo, R. F.[2];He, J. M.[2];Xu, H. M.[1]

机构：[1]Zhejiang Univ, Coll Agr & Biotechnol, Inst Bioinformat, Hangzhou 310029, Zhejiang, Peoples R China;[2]Guangdong Ocean Univ, Coll Agr, Zhanjiang 524088, Peoples R China;[3]NW Frontier Prov Agr Univ, Dept Math Stat & Comp Sci, Peshawar, Pakistan

年份：2010

卷号：42

期号：5

起止页码：3239

外文期刊名：PAKISTAN JOURNAL OF BOTANY

收录：SCI-EXPANDED(收录号：WOS:000285724100032)、、WOS

基金：This work was supported by National Basic Research Program of China (973 Program) (2007CB109000) and Ministry of agriculture public benefit research foundation (200803034).

语种：英文

外文摘要：A diallel cross experiment of 4 rice (Oryza sativa L.) female and 6 male varieties was conducted to study the genetic effects and their interaction with salt-stress condition of 7 agronomic traits in normal and salt-stressed planting conditions. The panicle length (PL), effective number of panicles per plant (ENP), plumped number of grains per panicles (PNG), total number of grains per panicles (TNG), 1000-grain weight (W), seed setting ratio (SSR) and grain weight per plant (PGW), were investigated. A genetic model including additive effect, dominance effect and their interaction effects with environment (ADE) was employed for analysis of data. It was observed that significant (p<0.05) additive effects, dominance effects, additive x environment interaction effects and dominance x environment interaction effects exist for most of the agronomic traits of rice. In addition, significant (p<0.05) narrow sense heritabilities of ENP, PNG, TNG, W and PGW were found, indicating that the genetic performance of these traits are greatly affected by salt stress condition. A significant (p<0.05) negative correlations in the additive effects and additive x environment interaction effects detected between ENP and PNG suggesting that selection on increasing of ENP can reduce PNG. In addition, there exist a highly significant (p<0.01) positive dominance correlation among the dominance effects of the ENP, PNG and TNG, which shows that it is possible to breed salt-tolerant rice variety by coordinating large panicle and multi-panicle in utilization of heterosis.