Genetic variability, character association and path coefficient analysis in bread wheat (Triticum aestivum Desf.)

SK Dagade; SS Dodake; NM Magar

Genetic variability, character association and path coefficient analysis in bread wheat (Triticum aestivum Desf.)

Author(s):

SK Dagade, SS Dodake and NM Magar

Abstract:

Genetic variability, correlation and path coefficient analysis was studied for grain yield and its components in 30 diverse genotypes of bread wheat. The analysis of variance revealed the significant differences among the genotypes for all the characters indicating presence of sufficient variability among the genotypes. Highest values for genotypic coefficient of variation was observed for grain yield (14.11) followed by grains per spike (12.05), number of spikelets (8.59) and 1000 grain weight (7.75) indicated wider genetic variation for these traits. Highest estimate of heritability was recorded for number of grains per spike (96.70) followed by days to 50% flowering (95.8), Days to maturity (93.10) and grain weight (91.40). Highest estimate of genetic advance was recorded for grain yield (15.66) followed by plant height (11.37), number of grains per spike (10.73) and Days to maturity (10.03). Genetic advance as a per cent of mean was observed highest for grain yield (27.78%) followed by number of grains (24.42%) and test weight (15.26%). The high heritability combined with high genetic advance as per cent of mean was observed for grain yield per plant indicated that selection may be effective for this character.

The correlation studies indicated that the grain yield showed strong significant and positive phenotypic correlation with test weight (0.9186), number of grains per spike (0.8678), ear head length (0.7805) and number of spikelets per ear head (0.6576), While 50% flowering (0.0366) showing non-significant positive correlation with grain yield. The grain yield showed significant and positive genotypic correlation with test weight (0.9249), number of grains per spike (0.8740), earhead length (0.7807) and number of spikelets per earhead (0.6612), while 50% flowering (0.0494) showing nonsignificant positive correlation with grain yield. The results of path analysis depicting that thousand grains weight, grains per spike, number of spikelets had higher magnitude of positive and direct effects on grain yield, should be important for yield improvement in bread wheat.

Pages: 2149-2155 | 785 Views 403 Downloads

Download (502KB)

Journal of Pharmacognosy and Phytochemistry

How to cite this article:

SK Dagade, SS Dodake and NM Magar. Genetic variability, character association and path coefficient analysis in bread wheat (Triticum aestivum Desf.). J Pharmacogn Phytochem 2020;9(6):2149-2155.

Pharmacognosy

Journal of Pharmacognosy and Phytochemistry

Vol. 9, Issue 6 (2020)

Genetic variability, character association and path coefficient analysis in bread wheat (Triticum aestivum Desf.)

Related Journal Subscription

Important Publications Links