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GRAIN YIELD STABILITY
IN CHICKPEA (CICER ARIETINUM L.) ACROSS ENVI RONMENTS
AHMAD BAKHSH1,*,
LAL HUSSAIN AKHTAR2, SHAHID RIAZ MALIK1, ASIF MASOOD1,
SH. MUHAMMAD IQBAL1 AND RAMATULLAH QURESHI3
Abstract:
Genotype
´
environment interaction (G x E) is a major constraint to identify single
superior genotype for a number of variable environments. In order to
quantify G ´ E interaction effect on grain yield in chickpea, 16 chickpea
genotypes were studied for grain yield at 6 locations for two years
using randomized complete block design. Combined analysis of variance
showed significant effects of locations, genotypes, years and their
interactions on grain yield. The genotypic effects contributed 45.60%
and G ´
E interaction contributed 54.40% to the total sum of squares. The
genotypes and environments, each, were divided into four groups on the
basis of similarity in their response. None of the genotypic group
performed consistently across the environmental groups. The parametric
approach and stability parameters indicated that genotypes; G1 (BRC-1),
G8 (BRC220) and G9 (BRC-224) were relatively stable in different
environments. The results of bi-plot analysis, however, indicated that
BRC-4, BRC-62 and BRC-231 were more stable for grain yield as they had
lesser interaction with environments as compared to other genotypes.
1Crop
Sciences Institute, NARC, Islamabad, Pakistan.
2Regional Agricultural Research Institute, Bahawalpur, Pakistan.
3
Department of Botany, Pir Mehr Ali Shah Arid Agriculture University,
Rawalpindi.
*Corresponding author: maharbr97@yahoo.co.uk
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