Anju Sharma Rakesh Kumar M. S. Mankotia P. K. Mahajan O. K. Belwal Satish K. Sharma


Genetic divergence was worked out in the new germplasm of apple (Malus × domestica Borkh.) including 42 genotypes. Mahalanobis's D2 statistics was applied for identifying the potential parents to be involved in the hybridization programme for trait specific improvement or selecting better segregants. On the basis of performance for various traits, genotypes were grouped into three clusters and maximum numbers of genotypes i.e. 28 were accommodated in cluster I , while 10 and 4 genotypes were arranged in cluster II and III respectively. The average intra cluster distance was maximum in cluster II (2.214) and minimum in cluster III (1.212). Inter cluster distance was maximum between cluster II and III (5.077) indicating that hybridization between genotypes from cluster II and III can be utilized for getting the superior recombinants in segregating generations. On the basis of cluster means for various characters , cluster II was found superior for shoot thickness (0.34cm), inter - nodal length (2.38cm), number of lenticels (62.10) and leaf blade length (8.79cm) whereas cluster III was found superior for leaf blade width (5.10cm), petiole length (2.64cm) and leaf blade ratio (3.62). Hence, hybridization between parents from cluster II and cluster III for these characters can produce better recombinants in segregating generations.


Download data is not yet available.


Metrics Loading ...




Apple, Cluster analysis, D2 statistic, Genetic divergence

Anonymous (2013). Handbook of Indian Horticulture Data-base. NHB, Gurgaon.
Forsline, P.L. and Aldwinckle, H.S. (2004). Evaluation of Malus sieversii seedling populations for disease resistance and horticultural traits. Acta Horticulture, 663: 529–534.
Gomez, K.A. and Gomez, A.A. (1983). Statistical Proce-dures for Agricultural Research. John Wiley and Sons Inc., New York. 357-427.
Janick, J., Cummins, J.N., Brown, S.K., and Hemmat, M. (1996). Apples. Fruit Breeding, Tree and Tropical Fruits. John Wiley & Sons, Inc., Vol I pp. 1–77.
Mahalanobis, P.C. (1936). On the generalized distance in statistics. Proceedings of Institute of Science, India 2: 49-55.
Noiton, D.A., and Alspach, P.A. (1996). Founding clones, inbreeding, coancestry, and status number of modern apple cultivars. J. Am. Soc. Hortic. Sci. 121: 773– 782.
Pereira, L.S., Ramos, C.A.M., Ascasibar, E.J. and Pineiro. A.J. (2003). Analysis of apple germplasm in North Western Spain. J. Amer. Soc. for Hort. Sci. 120(1): 67-84.
Rao, R. (1952). Advanced Statistical Methods in Biometrical Research. John Wiley and Sons Inc., New York. pp. 357-363.
Robinson, J., Harris, S.A., and Juniper, B.J. (2001). Taxon-omy of the genus Malus Mill. (Rosaceae) with emphasis on the cultivated apple, Malus domestica Borkh. Plant Syst. Evol. 226: 35–58.
Saran, P.L., Godara, A.K. and Dalal, R.P. (2007). Biodiver-sity among indian jujube (Ziziphus mauritiana Lamk.) Genotypes for powdery mildew and other traits. Not. Bot. Hort. Agrobot. Cluj. 35(2): 15-22.
Sharma, G., Sharma, N., Bashir, R., Khokhar, A. and Jamwal, M. (2013). Genetic divergence and cluster analysis studies of different apple genotypes using D2 statistics. African Journal of Agricultural Research. 8(37): 4681-4685.
Sharma, G. and Sharma, O.C. (2006). Genetic divergence among various scab resistant hybrids of apple (Malus x domestica Borkh.). Indian Journal of Genetics and Plant Breeding. 66(3): 259-260.
Srivastava, K.K., Ahmad, N., Das, B., Sharma, O.C., Singh, S.R. and Rather, J.A. (2013). Influence of diverse pollen source on fruit-fullness of apple (Malus domestica). Indian Journal of Agricultural Sciences. (11): 1217-1220.
Zhou, Z.Q. (1999). The apple genetic resources in China: the wild species and their distributions, informative charac-teristics and utilisation. Genet. Resour. Crop Ev. 46: 599–609.
Citation Format
How to Cite
Sharma, A., Kumar, R., Mankotia, M. S., Mahajan, P. K., Belwal, O. K., & Sharma, S. K. (2015). Genetic divergence evaluation of apple germplasm by D2 multivariate analysis. Journal of Applied and Natural Science, 7(2), 889-892. https://doi.org/10.31018/jans.v7i2.702
More Citation Formats:
Research Articles

Most read articles by the same author(s)

1 2 3 > >>