Ecology, Environment and Conservation Paper

Vol 21, Issue 1, 2015; Page No.(165-171)

CHARACTER ASSOCIATION AND PATH COEFFICIENT ANALYSIS STUDIES IN MARIGOLD

Mahesh Choudhary, B.S. Beniwal and Anop Kumari

Abstract

An investigation was carried out with 30 genotypes of marigold to assess association of yield components and their direct and indirect effects on flower yield. All the quantitative traits had a significant correlation (genotypic and phenotypic) coefficient with flower yield per plant except stalk length. Perceptibly the genotypic correlation coefficients were generally higher than the corresponding phenotypic correlation coefficients. Results of correlation coefficient analysis indicated that the flower yield per plant was found to be significantly and positively correlated with number of flowers per plant, flower size, number of secondary branches per plant, fresh weight of plant, number of buds per plant, days taken to first flowering, duration of flowering and fresh weight of flower. Stalk length showed a negative association with flower yield per plant. The highest direct positive effect on number of flowers per plant was exhibited by number of buds per plant followed by number of secondary branches per plant and plant spread. Thus, the present study indicated that number of secondary branches per plant, number of flowers per plant, flower size, fresh weight of plant, number of buds per plant, days taken to first flowering, duration of flowering and fresh weight of flower are important characters in deciding the flower yield per plant. Hence these characters may be considered as selection indices in marigold improvement programme.

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