Estimation of Variability, Heritability, Genetic Gain and Correlation in Clones (Grafts) of Kachnar (<I>Bauhinia variegata</I> L.)

I. K. Thakur

doi:10.36808/if/2018/v144i7/130925

Estimation of Variability, Heritability, Genetic Gain and Correlation in Clones (Grafts) of Kachnar (Bauhinia variegata L.)

Authors

I. K. Thakur Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (Himachal Pradesh)

DOI:

https://doi.org/10.36808/if/2018/v144i7/130925

Keywords:

Progeny Test, Growth Traits, Genotypes, Clone, Genetic Parameters, Correlation.

Abstract

Thirty two genotypes of Bauhinia variegata were evaluated for growth characteristics, mineral nutrients and proximate principles after four years in a previously raised progeny trial in the experimental field of the department.. Thus top eighteen selected genotypes were grafted separately on seedling stock of the same species and a clonal seed orchard was established which consisted of eighteen clones raised in RBD with three replications. After four years the observations were recorded on plant height, basal diameter, leaf width, leaf length, number of branches, petiole length and green leaf yield in each ramet of clones. Significant differences among clones were observed for different morphometric traits. Various genetic parameters and correlation coefficients for different growth characters were determined. The highest per cent GCV (33.20) and PCV (36.02) as also heritability (84.95) were exhibited by green leaf yield while maximum GA (3.23) was noticed in leaf width. The highest percent GG (61.86) was recorded for green leaf yield. Significantly positive correlations were observed between plant height and basal diameter (0.6086), plant height and green leaf yield (0.8461), basal diameter and green leaf yield (0.6924), leaf width and leaf length (0.6490), leaf width and green leaf yield (0.5688) and leaf length and green leaf yield (0.4225).

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