Pak. J. Bot., 35(2): 181-186, 2003. | Back to Contents | ||||
|
Updated: 09-07-09 | ||||
GENOTYPE - ENVIRONMENT INTERACTION FOR GRAIN YIELD IN CHICKPEA (CICER ARIETINUM L.) MUHAMMAD ARSHAD, AHMAD BAKHSH, A.M. HAQQANI AND MUHAMMAD BASHIR
Abstract:
Twenty-five genotypes of chickpea were evaluated for stability of grain yield
under 12 diverse environments within Pakistan. The interaction between the genotypes
and environments (G X E interaction) was used as an index to determine the yield
stability of genotypes under all the environments. The G X E interaction was highly
significant and both linear as well as non-linear components were equally important
for determining the yield stability. Since the regressions (bi) were not significantly
different from linearity, therefore, stable performance of the varieties could
not be predicted on 'bi' alone. In this case, deviations from regression and the
cultivars yield were used to judge the superior genotypes. The genotypes; '96051',
'90280', 'C44', '91A039', 'NCS95004', 'NCS950010', 'NCS950180', '99101', 'A-16',
'91A001', 'NCS950012' and '93009' produced above average yield. The genotypes
'96051' and '98280' gave highest grain yield but their high deviation from regression
showed fluctuation in the performance under different environments. The genotypes
'C44', 'NCS950183' and '93009' had also above average yield but their low deviation
from regression revealed more stable performance compared to others. Pulses Program, Institute for Field and Horticultural Crops, National Agricultural Research Center, Islamabad, Pakistan. |
|||||
Back to Contents |
|
Back to Contents |