GENETIC EVALUATION OF MARIGOLD GERMPLASM (TAGETES SPP.) FOR GROWTH, YIELD AND QUALITY PARAMETERS UNDER BHARSAR CONDITIONS
Loading...
Date
2017-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
College of Horticulture, Bharsar Campus, V.C.S.G. Uttarakhand University of Horticulture and Forestry
Abstract
The present experiment was conducted at Vegetable Research and Demonstration Block of
the Department of Vegetable Science, Veer Chandra Singh Garhwali Uttarakhand University of
Horticulture and Forestry, Bharsar, Pauri Garhwal during summer season of 2016 on 21 genotypes
of both African and French marigold to estimate the genetic variability, heritability, genetic
advance and correlation of various traits with yield. The observations were recorded on growth,
flowering and yield parameters. The analysis of variance revealed that the mean sum of squares due
to genotypes were highly significant for all the characters studied, indicating a wide range of
variability in the material investigated. The highest yield per plant was recorded in the genotype
Coimbatore Local followed by Pusa Narangi and the lowest in genotype BC-3. The high GCV and
PCV values were observed for plant height, number of days for first flower bud initiation, number
of flowers per plant, number of ray florets per flower, fresh weight of the flower and yield per
plant. In the present study the characters, yield per plant, number of ray florets per flower, number
of flowers per plant, number of leaves per plant and plant height showed high heritability along
with high genetic gain. Association analysis revealed a highly significant positive correlation of
flower yield per plant with plant height, plant spread, number of primary branches, number of
leaves per plant, stem diameter, fresh weight of flower, flower diameter, number of ray florets and
flowering duration, indicating selection for these characters may help in crop improvement. Path
analysis depicted that the characters like fresh weight of the flower and the number of flowers per
plant are important characters affecting flower yield since they had a high positive direct effect.
Based on D2 values, all the 21 genotypes were grouped into 5 clusters, indicating the presence of a
considerable amount of genetic diversity among the genotypes under study
Description
Keywords
null