International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:9, September, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 1384-1390

Study of Genetic Diversity among Elite Genotypes of Rice (Oryza sativa L.) for Direct Seeding Traits
Ravikanth Bendi1*, P.V. Satyanarayana2, N. Chamundeswari2, Y. Ashoka Rani3,V. Srinivasa Rao3 and D. Ratna Babu3
1Department of Genetics & Plant Breeding, Agricultural College, Bapatla, Guntur, A.P., 522 101, India
2Regional Agricultural Research Station, Maruteru, West Godavari, A.P., 534 122, India
3Agricultural College, Bapatla, ANGRAU, Guntur, A.P., 522 101, India
*Corresponding author

An experiment was carried out with 48 elite rice genotypes to study genetic diversity for direct seeding traits. They were evaluated for 19 characters consisting of 13 agronomical and six physiological using Mahalanobis D2 statistics. On the basis of D2 values the genotypes were grouped into eight clusters. Cluster I and VI were the largest containing 15 and 12 genotypes respectively followed by cluster III with 6 and cluster V with 4 genotypes. The maximum inter-cluster distance was recorded between clusters VII and VIII (11832.91) and the maximum intra-cluster distance was found in cluster IV (841.80) followed by cluster III (823.07). The characters like test weight (46.99%), vigour index (34.57%), plant height (12.23) and number of total grains panicle-1 (1.68%) contributed maximum towards genetic diversity. Therefore these characters could be given due importance for selection of genotypes suitable for direct seeding in rice. Genotypes from the clusters VII and VIII, III and VIII, I and VIII will result in superior segregants.

Keywords: Genetic diversity, D2 Analysis, Direct seeded rice

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How to cite this article:

Ravikanth Bendi, P.V. Satyanarayana, N. Chamundeswari, Y. Ashoka Rani, V. Srinivasa Rao and Ratna Babu, D. 2018. Study of Genetic Diversity among Elite Genotypes of Rice (Oryza sativa L.) for Direct Seeding Traits.Int.J.Curr.Microbiol.App.Sci. 7(9): 1384-1390. doi:
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