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  DOI Prefix   10.20431


 

International Journal of Advanced Research in Botany
Volume 3, Issue 3, 2017, Page No: 1-7
doi:dx.doi.org/10.20431/2455-4316.0303001

Environmental Impact on Early Generations Selection and Its Implications on Breeding Strategies in Rice

Oumarou Souleymane1,Massaoudou Hamidou2,Mahamadou Salifou3,Baboucarr Manneh4,Eric Danquah5,Kwadwo Ofori6

1.National Institute for Agronomic Research of Niger (INRAN).
2.Africa Rice center (ex-WARDA)/AfricaRice Sahel Station B.P. 96 Saint Louis/Senegal
3.School of Agriculture, College of Basic and Applied Sciences, University of Ghana

Citation :Oumarou Souleymane,et.al, Environmental Impact on Early Generations Selection and Its Implications on Breeding Strategies in Rice International Journal of Advanced Research in Botany 2017,3(3) : 1-7

Abstract

Genotype-environment interaction poses an outmost barrier to the breeders in the process of development of improves rice varieties. Understanding the causes and extent of Genotype-environment interaction is highly useful to frame breeding objectives, identifying ideal test locations, and formulating varietal release recommendations. The objectives of this study were to: (i) know the effect of environment on gene action, (ii) assess yield stability across environment, (iii) know the ideal environment to discriminate the F3 population and (iv) assess ideal genotype to discriminate the environment. Thus, 120 rice families, 4 parents and local check were evaluated on 2 saline environments. Collected data were analyzed using SAS software version 9.2 and Genstat 18 th. Non significant effect of environment on gene action was noticed for all the traits, tiller excepted. The genotype by environment interaction was highly significant implying differential performance of families at different locations. However, there was crossover G * E interaction, suggesting that different winners can be evaluated in different environments.


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