AS  Vol.4 No.7 A , July 2013
Estimation of phenotypic divergence in a collection of Cucumis melo from Kerala State, Southern India
ABSTRACT

A collection of melon (Cucumis melo L.) from Kerala state, Southern India, consisting of thirty three accessions was evaluated for 22 quantitative and 14 qualitative characteristics to estimate the phenotypic diversity. The collection showed appreciable phenotypic diversity in fruit related traits. Principal component analysis (PCA) was performed to determine the relationships among the populations. The analysis revealed that the variations in stem hair length, number of nodes per plant on 60th day, fruit shape, fruit length, fruit weight, fruit colour at ripening, fruit rind hardness, flesh colour, flesh firmness, quality of flesh, shelf life, seed colour were the principle characters to discriminate melon accessions evaluated in the present study. When the 33 populations were plotted on the first two principal components, accounting for 49.97% of the total variation, three clusters were identified, accounting for 36 morphological attributes used in the study. The greater part of diversity was accounted for fruit diameter, fruit weight, fruit length and width, fruit cavity length and diameter, seed length and colour. Flesh area of fruit, flesh thickness, leaf size, seed weight, seed index did not account for variation in the first six principal components of the melon collection. Scatter diagram segregated the acidulus and momordica into different clusters. This evaluation of fruit trait variability can assist geneticists and breeders to identify populations with desirable characteristics for inclusion in various breeding programmes.


Cite this paper
Koli, S. and Murthy, H. (2013) Estimation of phenotypic divergence in a collection of Cucumis melo from Kerala State, Southern India. Agricultural Sciences, 4, 21-31. doi: 10.4236/as.2013.47A004.
References
[1]   Kirkbride, J.H. (1993) Biosystematic monograph of the genus Cucumis (Cucurbitaceae). Parkway Publishers, Boone.

[2]   Whitaker, T.W. and Davis, G.N. (1962) Cucurbits: Botany, cultivation, and utilization. Interscience Publishers, New York.

[3]   Jeffery, C. (1980) A review of the Cucurbitaceae. Botanical Journal of the Linnean Society, 81, 223-247.

[4]   Fregany, M., Balvir, K., Monforte, A.J., Pitrat, M., Rys, C., Lecoq, H., Dhillon, N.P.S. and Dhaliwal, S.S. (2011) Variation in melon (Cucumis melo) landraces adapted to the humid tropics of southern India. Genetic Resources and Crop Evolution, 58, 227-243.

[5]   Kitamura, T., Kmemoto, T. and Akazawa, T. (1975) Studies on the storage of melon fruits II. Changes of respiration and ethylene production during ripening with reference to cultivars. Journal of the Japanese Society for Horticultural Sciences, 44, 197-203. doi:10.2503/jjshs.44.197

[6]   Shiomi, S., Yamamoto, M., Nakamura, R. and Inaba, A. (1999) Expression of ACC oxidase genes in melon harvested at different stages of maturity. Journal of the Japanese Society for Horticultural Sciences, 68, 10-17. doi:10.2503/jjshs.68.10

[7]   Miccolis, V. and Salveit Jr., M.E. (1991) Morphological and physiological changes during fruit growth and maturation of seven melon cultivars. Journal of American Society for Horticultural Science, 116, 1025-1029.

[8]   Liu, L., Kakihara, F. and Masahiro, K. (2004) Characterization of six varieties of Cucumis melo L. based on morphological and physiological characters including shelf-life of fruit. Euphytica, 135, 305-313. doi:10.1023/B:EUPH.0000013330.66819.6f

[9]   Guis, M., Botondi, R., Ben-Amor, M., Ayub, R., Bouzayen, M., Pech, J.C. and Latche, A. (1997) Ripening-associated biochemical traits of cantaloupe Charentias melon expressing antisense ACC oxidase transgene. Journal of American Society for Horticultural Science, 122, 748-751.

[10]   Ayub, R., Guis, M., Ben-Amor, M., Gillot, L., Roustan, J.P., Latche, A., Bouzyen, M. and Pech, J.P. (1996) Expression of ACC oxidase antisense gene inhibits ripening of cantloupe melon fruits. Nature Biotechnology, 14, 862-866. doi:10.1038/nbt0796-862

[11]   Hadfield, K.A., Rose, J.K.C. and Bennett, A.B. (1995) The respiratory climacteric is present in Charentais (Cucumis melo cv. reticulates F1 Alpha) melons ripened on or off the plant. Journal of Experimental Botany, 46, 1923-1925. doi:10.1093/jxb/46.12.1923

[12]   Lester, G. (1988) Comparison of “Honey Dew” and netted muskmelon fruit tissues in relations to storage life. HortScience, 23, 180-182.

[13]   Pratt, H.K., Goeschl, J.D. and Martin, F.W. (1977) Fruit growth and development, repining and role of ethylene in the “Honey Dew” muskmelon. Journal of American Society for Horticultural Science, 102, 203-210.

[14]   Manohar, S.H. and Murthy, H.N. (2012) Estimation of phenotypic divergence in a collection of Cucumis melo, including shelf-life of fruit. Scientia Horticulturae, 148, 74-82. doi:10.1016/j.scienta.2012.09.025

[15]   Robinson, R.W., Munger, H.M., Whitaker, T.W. and Bohn, G. W. (1976) Genes of Cucurbitaceae. Horticultural Science, 11, 554-568.

[16]   Ramaswamy, B., Seshadri, V.S. and Sharma, J.C. (1977) Inheritance of some fruit characters of muskmelon. Scientia Horticulturae, 6, 107-120. doi:10.1016/0304-4238(77)90027-9

[17]   Jeffers, J.N.R. (1967) Two case studies in the application principal component analysis. Applied Statistics, 16, 225-236. doi:10.2307/2985919

[18]   Li, X.X., Kaldhara, F. and Kato, M. (1994) Character of Chinese Hami melons cultivated under vinlayl house condition. Memoirs of the College of Agriculture— Ehime University, 39, 180.

 
 
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