Genetic
variability, heritability and genetic advance in bhindi (Abelmoschus esculentus (L.) Monech)
RK
Sharma1, Ravi Shankar Singh2, Arun Kumar3
1Department
of Horticulture (Vegetables & Floriculture), Bihar Agriculture College (BAU),
Sabour-813 210
2Department of Plant Breeding and
Genetics, Bihar Agriculture College (BAU), Sabour-813 210
3Directorate
of Planning, Bihar Agricultural University, Sabour, Bhagalpur- 813 210 Bihar
Received: 25 April 2017 Revised
Accepted: 23 June 2017
ABSTRACT
Genetic
variability, heritability and genetic advance in Bhindi were studied involving
twenty five genotypes for twelve characters in order to evolve a suitable
breeding methodology for its genetic improvement. The data showed the high
significant differences for all the characters except fruit diameter and fruit
weight were observed in all the genotypes. The highest (0.48 kg-1.00 kg) and
the lowest (1.95 cm-2.23 cm) range of variability were exhibited by early yield
and fruit diameter, respectively. A wide range of phenotypic as well as
genotypic variability was recorded for plant height and 1000 seeds weight. The
maximum range was obtained for plant height and minimum for early yield.
Genotypic variance as percentage of phenotypic variance was the maximum
(90.854%) for plant height and the minimum (0.463%) in case of fruit diameter.
The maximum environmental variance (16.470) was obtained for plant height. Total yield, number of fruit per plant,
number of branches per plant, plant height, and days from flowering to fruit set,
days from fruit set to first harvest and early yield had high genotypic
coefficient of variation. The high heritability with high genetic gain was
obtained in plant height followed by 1000 seeds weight. The present study led
to the identification of characters helpful in selection of suitable genotypes
for future breeding programme viz; fruit weight, number of branches per plant,
plant height and number of fruits per plant, which also had high genotypic and
phenotypic coefficient of variation, high heritability together with high
genetic advance.
Key Words: Abelmoschus
esculentus, Bhindi, GCV, Genetic gain, Genetic advance, Heritability, PCV