Universal Journal of Plant Science Vol. 1(2), pp. 27 - 36
DOI: 10.13189/ujps.2013.010201
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Estimation of Genetic Variability and Divergence for Fruit Yield and Quality Traits in Cucumber (Cucumis Sativus L.) in North-Western Himalays

Sandeep Kumar¹, Dharminder Kumar^1,*, Ramesh Kumar¹, KS Thakur¹, Balbir Singh Dogra^2
1 Department of Vegetable Science, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan–173 230, HP, India
² Regional Horticulture and Forestry Research Station, Bhota, Hamirpur (HP), Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan–173 230, HP, India

ABSTRACT

Thirty diverse genotypes of cucumber collected from different indigenous sources were planted in randomized complete block design, during rainy season of 2009 and were assessed to know the nature and magnitude of variability and genetic divergence for different horticultural traits. The genotype LC-1 gave maximum mean value for fruit weight and yield per plot. High phenotypic coefficient of variability (PCV), genotypic coefficient of variability (GCV) and heritability estimates coupled with high genetic gain were observed for seed vigour index-I and yield per plot, indicated the existence of wide range of variations and offers better scope for improvement through selection. The genotypes were grouped into 4 clusters and the highest (6.168) inter cluster distance was recorded between cluster-II and III. The diverse genotypes characterized by maximum inter cluster distance will differ in phenotypic performance and therefore, selection of divergent parents should be based on these cluster distances to obtain favourable hybrids and transgressive segregants in cucumber.

KEYWORDS
Cucumber, Genetic Variability, Divergence, Heritability and Mahalanobis D₂ statistics

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Sandeep Kumar , Dharminder Kumar , Ramesh Kumar , KS Thakur , Balbir Singh Dogra , "Estimation of Genetic Variability and Divergence for Fruit Yield and Quality Traits in Cucumber (Cucumis Sativus L.) in North-Western Himalays," Universal Journal of Plant Science, Vol. 1, No. 2, pp. 27 - 36, 2013. DOI: 10.13189/ujps.2013.010201.

(b). APA Format:
Sandeep Kumar , Dharminder Kumar , Ramesh Kumar , KS Thakur , Balbir Singh Dogra (2013). Estimation of Genetic Variability and Divergence for Fruit Yield and Quality Traits in Cucumber (Cucumis Sativus L.) in North-Western Himalays. Universal Journal of Plant Science, 1(2), 27 - 36. DOI: 10.13189/ujps.2013.010201.