Effect of water availability and temperature on the genotype-by-environment interaction of pearl millet in semi-arid tropical environments

Oosterom, E J Van and Mahalakshmi, V and Bidinger, F R and Rao, K P (1996) Effect of water availability and temperature on the genotype-by-environment interaction of pearl millet in semi-arid tropical environments. Euphytica, 89 (2). pp. 175-183. ISSN 0014-2336

PDF - Published Version Restricted to ICRISAT users only Download (631kB) | Request a copy

Abstract

Grain yields in drought-affected environments are often characterized by large genotype-by-environment (GE) interactions, caused by a highly variable timing and intensity of stress occurrence. The aim of our study was to assess the effectiveness of simple meteorological environmental descriptions in providing an understanding of the environmental contribution to the GE interaction of pearl millet (Pennisetum glaucum (L.) R. Br.) in the semi-arid tropics. The experiment comprised fourteen genotypes, grown across 24 environments in India. Data on water availability throughout the season and maximum temperatures during grain filling were used to describe the environments. Escape from drought and heat stress were the major factors determining the GE interaction. Both the timing and intensity of stress occurrence were important. Knowledge of the environmental causes of the GE interaction may facilitate the identification of adaptive plant traits, and may also enable a more rational choice of test locations for breeding programs.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Millets
Depositing User:	Mr Charan Sai Ch
Date Deposited:	06 Dec 2011 11:56
Last Modified:	06 Dec 2011 11:56
URI:	http://oar.icrisat.org/id/eprint/3281
Official URL:	http://dx.doi.org/10.1007/BF00034603
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

View Statistics

Actions (login required)

View Item