Vol. 10, Issue 5 (2021)

Author(s):
Amitava Roy, Anil Kumar, Anu Singh, Anusri Mandi and Mainak Barman

Abstract:
The present research programme investigates forty-nine genotypes of bread wheat consisting of 33 F1s obtained by crossing eleven lines with three varieties in a line x tester mating design along with their parents and two well-known checks. The experiment was laid out in a randomized block design with three replications with each row of 1m. Results revealed considerable genetic variability among the genotypes. Traits like grain yield per plant and number of tillers per plant exhibited higher values of PCV with moderate GCV. High heritability with moderate values of genetic advance were recorded for grain weight per spike (17.688%) followed by number of grains per spike (17.392%), biological yield per plant (14.664%), 1000 grain weight (11.996%) indicating involvement of additive gene action in the inheritance of these traits and hence selection along with progeny testing can be employed for improvement of these characters. Correlation studies revealed that number of tillers per plant, harvest index, biological yield per plant have significant positive correlation with the trait grain yield per plant. Therefore, selection for these traits will ultimately aid into increase in overall productivity of the genotypes. It was also observed that days to maturity had a negative association with the yield; hence, early maturing cultivars should be preferred while breeding for the higher yield.