Author (s): Nargis Akter, M. M. Islam, A.S.M. Yahiya and M. A. Newaz
Abstract
Genotype-by-sowing date interaction of seven jute genotypes (O-9897, O-72, A-1749, O-4, SDLT2, JRO-524 and A-4582) for fibre and seed yield were assessed at three different sowing dates (1st March, 1st April & 1st May) treated as sowing environments through regression and deviation from regression analysis. The experiments were carried out at the Jute Agriculture Experimental Station (JAES) of BJRI, Manikganj, Bangladesh during March’ 2005-December 2005 in Randomized Complete Block Design with three replications. The genotype environment interaction was highly significant for number of pods plant-1, which indicated significant differences in the response of genotypes to changes in environments for this character. The Varieties O-9897, JRO-524 and A-4582 showed non-significant S2di suggested that the varieties might be stable for pods plant-1 under environmental fluctuation. The phenotypic index of A-1749 and O-4 were positive and the remaining was negative. Regression coefficient of JRO-524 had higher value than unity which indicated high responsiveness of the genotype and its suitability for favorable environments. Regression coefficient of O-9897 was close to unity for pods plant-1 indicating stable performance of the genotype over different sowing dates for the character. The genotype A-4582 had regression coefficient much lower than unity, reflected suitability of the genotype to poor environment for the concerned character.
J. Expt. Biosci.1(1) January 2010
Full pdf: PDF
J. Expt. Biosci.1(1) January 2010
Full pdf: PDF
