International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 2
First page : (751) Last page : (757)
Article doi: http://dx.doi.org/10.18782/2320-7051.2501
Genetic Variability Studies for Various Quantitative Traits in Marigold
Nilima Gobade1, Shalini Badge2*, Shanti Patil3 and Gourao Gormade4
1,4P.G. Students, Horticulture Section, College of Agriculture, Nagpur (M.S.)
2Asstt. Professor, Horticulture Section, College of Agriculture, Nagpur (M.S.)
3Asstt. Professor, Botany Section, College of Agriculture, Nagpur (M.S.)
*Corresponding Author E-mail: shalinibadge@gmail.com
Received: 24.01.2017 | Revised: 5.02.2017 | Accepted: 6.02.2017
ABSTRACT
To assess the genetic variability present in thirteen genotypes (12 local collections and one check ie. African double orange) of marigold the experiment was conducted in a randomized block design with three replication in a plot size of 1.8 m x 3.0 m The plants were transplanted at spacing 45 x 30 cm. during the year 2015-16 in the Horticulture Section, College of Agriculture, Nagpur. Genetic variability and heritability studies indicated that there were highly significant differences between the genotypes for yield of flower ha-1 and eighteen other characters. Comparison of genotypic and phenotypic co-efficient of variation for different traits indicated that the values of PCV were higher as compared to GCV due to the influence of environment. The coefficient of variation both at genotypic and phenotypic levels were maximum for disc diameter, yield of flowers ha-1, weight of flower, diameter of fully opened flower, shelf life, number of flower plant-1 and length of pedicel. Heritability estimates for all the characters except plant spread at 50% flowering were high. High heritability along with high genetic advance as per cent of mean was observed for disc diameter, yield of flowers ha-1, weight of flower, diameter of fully opened flower, number of flowers plant-1, shelf life, and length of pedicel which were due to additive gene effects thus suggesting that selection for these characters would be very effective. Based on these seven traits, genotypes NAM-2, NAM-6 and NAM-12 were found significantly superior and identified for further purification and multiplication for their commercial exploitation
Key words: Marigold, Variability, Genetic Advance, Heritability
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Gobade, N., Badge, S., Patil, S. and Gormade, G., Genetic Variability Studies for Various Quantitative Traits in Marigold, Int. J. Pure App. Biosci.5(2): 751-757 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2501
