Journal of Horticultural Sciences

Dinesh Singh ¹, K. Kumar ¹, Vikas Kumar Sharma ¹

Affiliations
1 Department of Fruit Science, University of Horticulture & Forestry, Nauni, Solan - 173230, IN

Abstract

Nature and magnitude of genetic diversity was assessed in 170 wild raspberry genotypes based on eight quantitative characteristics, viz., fruit weight, fruit length, fruit breadth, TSS, acidity, reducing sugars, non-reducing sugars and Vitamin C. A survey was conducted in three north-western Himalayan states of Himachal Pradesh, Jammu&Kashmir and Uttarakhand. The species was found to be distributed between 760 and 1950m AMSL, 30°10'159" to 33°04'693"N and 74°44'076" to 78°25'681"E. The non-hierarchical cluster analysis resulted in 12 clusters of genotypes. The cluster pattern did not exhibit any interrelation between geographical isolation and genetic diversity. Of the 170 genotypes, 31 fell in Cluster XII, 27 in Cluster V, 19 in Cluster I, 17 in Cluster IX, 16 in Cluster VIII, 15 in Cluster XI, 13 in Cluster II, 12 in Cluster VII, 10 in Cluster III, six in Cluster X, three in Cluster VI and one genotype in Cluster IV. Genotypes falling under Clusters III, VI , VI can be used as parents in hybridization programmes for improving important traits like TSS, fruit weight and acidity respectively.

Keywords

Raspberry, Genetic Diversity, Cluster Analysis.

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Dinesh Singh ¹, K. Kumar ¹, Vikas Kumar Sharma ¹, Mohar Singh ¹

Affiliations
1 Department of Fruit Breeding and Genetic Resources, Dr Y.S. Parmar University of Horticulture and Forestry Nauni, Solan-173 230 (HP), IN

Abstract

The present investigation was carried out in various districts of Himachal Pradesh, Jammu&Kashmir and Uttarakhand States falling under north-western Himalayan region of India. As a result of sustained exploration, 170 wild raspberry genotypes were marked and studied for berry quality attributes. Variation ranged from 0.25 g-0.93 g for berry weight. Berry length varied between 6.31 mm and 14.46 mm, while, berry breadth was 7.02 mm to 15.91 mm. Variation in Total Soluble Solids (TSS) in berry ranged between 9.6oB and 18.6oB whereas, acidity in berries ranged between 1.02 and 1.72%. The range of variation was 2-4.90% for reducing sugars, 4.2° - 11.6° for non-reducing sugars and 2.4- 5.2 mg/100 g for ascorbic acid. Berry weight had significant and positive correlation with its length and its breadth. Berry length exhibited positively significant correlation with berry breadth.

Keywords

Raspberry, Variation, Heritability, Berry Quality, Correlation.

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