Analysis and utilization of genetic diversity of ‘Ambri’ apple (Malus × domestica Borkh.) in Jammu region
Analysis of Genetic Diversity in ‘Ambri’ Apple
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Ambri apple, fruit weight, genetic diversity, variantsIssue
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Present investigation was conducted in erstwhile Doda district of Jammu & Kashmir state to study the genetic diversity among ‘Ambri’ apple variants and its exploitation to revive this indigenous variety in the state for commercial cultivation and to utilize in apple improvement programme. Among the 34 collected variants, a wide range of diversity was observed in respect of fruit weight (86.90-334.97 g), fruit length (59.13-84.00 mm), fruit width (68.21-94.31 mm), flesh firmness (3.65-9.65N), seed number (5.00-7.00) TSS ( 01.90-20.00 oBrix), and titratable acidity (0.31-1.78). Highest coefficient of variation was recorded for titratable acidity (0.56%). Fruit weight showed significantly positive correlations with fruit length and stalk and number of seeds per fruit. First three factors having eigen value having >1 explained 70.04% of total variation observed in the collected population. Of the total collections, only seven variants attained the numerical rating, being accepted of consumer’s acceptability. Variants of BM2910 and BC3210 were identified as most acceptable variants for mass production and to revive the ‘Ambri’ apple cultivation and their further use in breeding programmes.Abstract
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Anonymous. 2013. NHB Database, National Horticulture Board, Ministry of Agriculture, Govt. of India. Bisati, I.A. 2012. Survey and screening of Ambri in Kashmir. Ph.D. thesis, submitted to Division of Fruit Science, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar (J&K). Dhillon, B.S. and Rana, J.C. 2004. Temperate fruits genetic resources management in India - Issues and strategies. Acta Hort. 662: 139-146. Farrokhi, J., Darvishzadeh, R., Maleki, H.H. and Naseri, L. 2013. Evaluation of Iranian native apple (Malus × domestica Borkh) germplasm using biochemical and morphological characteristics. Agriculturae Conspectus scientificus, 78: 307-13. Horwitz, W.1980. Official Methods of Analysis. Association of Official Analytical Chemists (13th Edn), Washington D.C., USA Kunihisa, M., Moriya, S., Abe, K., Okada, K., Haji, T., Hayashi, T., Kim, H., Nishitani, C., Terakami, S. and Yamoto, T. 2014. Identification of QTLs for fruit quality traits in Japanese apples: QTLs for early ripening are tightly related to preharvest fruit drop. Breed. Sci. 64 : 240-51. Mratinic, E. and Aksic, M.F. 2012. Phenotypic diversity of apple (Malus sp.) germplasm in South Serbia. Brazilian Arch. Biol. Tech. 55: 349-58. Oraguzie, N.C., Hofstee, M.E., Brewer, L.R. and Howard, C. 2001. Estimation of genetic parameters in a recurrent selection program inapple. Euphytica, 118: 29-37. Pereira-lorenzo, S., Ramos-Cabrer, A.M. and Diaz-Hernández, M.B. 2007. Evaluation of genetic identity and variation of local applecultivars (Malus × domestica) from Spain using microsatellite markers. Genet. Res. Crop Evol. 54: 405-20. Peryam, D.R. and Pilgrim, F.J. 1957. Hedonic scale method of measuring food preference. Food Tech. 11:9-14 Rana, J.C., Dutta, M. and Rathi, R.S. 2012. Plant genetic resources of the Indian Himalayan region- an overview. Indian J. Genet. 72: 115-29. Roe, J.H. 1954. Chemical determination of ascorbic, dehydroascorbic acid and diketogluconic acids. Meth. Biochem. Anal., 1:115-39. UPOV. 2005. Apple (Fruit Varieties). Guidelines for the Conduct of Tests for Distinctness, Uniformity and Stability. TG/14/9. International Union for the Protection of New Varieties of Plants, Geneva. Verma, V.D., Pradheep, K., Yadav, S.K., Rana, J.C. and Chander, R. 2006. Characterization of apple germplasm. Indian J. Plant Genet. Res. 19:276-78.
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