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D2 ANALYSIS IN RICE (ORYZA SATIVA L.)

K. Palaniraja, Y. Anbuselvam

Affiliations

¹Faculty of Agriculture, Department of Agricultural Botany, Annamalai University, Annamalai Nagar – 608 002, India.

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Cite article:- Palaniraja K., Anbuselvam Y. (2025). D2 ANALYSIS IN RICE (ORYZA SATIVA L.). Agricultural Science Digest. 30(3): 182 - 185. doi: .

ABSTRACT

Genetic divergence was studied for different yield and its component traits for 51 rice
genotypes collected from different eco-geographical regions of India. The analysis of variance
revealed significant differences among the genotypes for all the characters studied. Based on
genetic distance all the 51 genotypes were grouped under fifteen different clusters. The mode of
distribution of genotypes from different eco- regions into various clusters was at random indicating
that geographical diversity and genetic diversity were not related. The characters like plant height,
panicle length and grain yield per plant contributed maximum towards genetic diversity. The
maximum inter-cluster distance was recorded between cluster I and XV. Selection of genotypes
in these clusters which may serve as potential donors for future hybridization programmes to
develop potential recombinants with high yield coupled with desirable traits

KEYWORDS

REFERENCES

Allard, R. W. (1960) Principles of plant breeding. Wiley and Sons Inc., New York.
Kandamoorthy, S. and Govindarasu R., (2005) Indian J. Genet., 65; 43 – 44.
Mahalanobis, P.C. (1936) Proc. Nat. Inst. Sci., India. 2 ; 49 – 55.
Rao, C. R. (1952) Advanced statistical methods in biometrical research. Edn. I. John Wiley & Sons, New York. Pp. 390.
Singh and Narayanan. (2000) Biometrical Techniques in Plant Breeding. Kalyani Publishers. Chennai

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