Genetic pattern analysis of some quantitative traits in lentil (Lens culinaris Medic.)

Combining ability and gene action of four seed yield contributing characters in onion (Allium cepa L.)

“…The nonsignificant F values suggested the presence of an equal amount of dominant and recessive genes in the parents. This result is in agreement with the findings of Deb (2020) [10] . The H 1 component is significant only for scape height and umbel diameter and the remaining two characters are found to be non-significant.…”

“…Whereas, the same (h 2 ) for umbel diameter was significant, indicated that dominance effect over all loci in the heterozygous phase was important. The dominance effect over all loci was in the heterozygous phase for CAMF, NSBMF, NPdPP and NSPP observed by Deb (2020) [10] . All the four genetic parameters viz.…”

“…But this ratio greater than 0.25 was recorded only for number of umbel indicated equal distribution of positive and negative alleles. Both unequal and equal gene frequencies were obtained by Basari et al, (2011) [5] and Deb (2020) [10] in black gram and chickpea, respectively. The ratio of [(4DH 1 ) 1/2 + F] / [(4DH 1 ) 1/2 -F] determines the proportion of dominant and recessive genes in the parents.…”

“…Even El-Ahmadi and Stevens (1979b) [11] also reported similar findings of partial dominance for flowers per cluster and percent fruit set in tomato. On the other hand, over dominance was noted by Karami (2011) [23] and Deb (2020) [10] in chickpea. Chowdhury and Deb (2016) [9] observed partial to over dominance in lentil.…”

“…This value for the other three traits is less than one suggested that parents had more recessive than dominant genes. Traits DFF, PHFF, NSBFF, CAMF, NPdPP, NSPP and RW showed excess dominant genes in the parent whereas, traits NPBFF, NSBMF, PdWPP, SWPP and IPW exhibited excess recessive gene than dominant genes in the parents (Deb, 2020) [10] . Hong-Pang-Wu (1968b) [17] estimated an equal proportion of dominant and recessive genes for number of primary branches per panicle and panicle length in rice.…”