Vol. 8 (1) : January-February 2017 issue
Green Farming Vol. 8 (1) : 47-51 ; January-February, 2017
Estimation of genetic variability, heritability, genetic advance and diversity studies in okra genotypes
PRAKASH KERUREa1*, M. PITCHAIMUTHUb2 and AKSHATA HOSAMANIc3
aDeptt. of Horticulture, ICAR-Krishi Vigyan Kendra, Babbur Farm, Hiriyur, Chitradurga Dist 577 598 (Karnataka)
bDivision of Vegetable Crops, ICAR-Indian Institute of Horticultural Research, Bengaluru-560 089 (Karnataka)
cDepartment. of Agriculture, Govt. of Karnataka, Haliyala, Tq. Uttara Kannada (Karnataka)
Designation : 1Asstt. Prof. *(prakash837@gmail.com), 2Principal Scientist, 3AAO
Subject : Vegetable Sciences
Paper No. : P-5144
Total Pages : 5
Received : 07 May 2016
Revised accepted : 14 December 2016
Get Access
Citation :
PRAKASH KERURE, M. PITCHAIMUTHU and AKSHATA HOSAMANI. 2017. Estimation of genetic variability, heritability, genetic advance and diversity studies in okra genotypes. Green Farming Vol. 8 (1) : 47-51 ; January-February, 2017
ABSTRACT
In the present investigation, an attempt has been made to evaluate the genetic variability of yield contributing characters, and the genetic diversity in fifty one genotypes and one check variety Arka Anamika of okra collected from the IIHR, Bangalore, India. Analysis of variance indicated significant differences among the genotypes for different morphological characters. The phenotypic variances for all the thirteen characters were found to be higher than the genotypic variances. High GCV and PCV were observed for yield per plant, no. of fruits per plant, no. of seeds per fruit, average fruit weight. High heritability coupled with high GAM were observed for almost all the characters studied, except days to 50% flowering and days to 80% maturity, which shows low heritability with low GAM. The yield per plant, plant height and no. of seeds per fruit showed high genetic advance that helped in effective and reliable selection through these characters for crop improvement. On the basis of K clustering method, the genotypes were grouped into eight groups. The Group I was the largest with twelve genotypes followed by Group VII and II with eleven, ten genotypes respectively and cluster mean values for 15 different characters estimated.
Key words :
Genetic advance, Genetic variability, Heritability, K clustering method, Okra.