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ASSOCIATION ANALYSIS OF YIELD AND DROUGHT TOLERANT CHARACTERS IN RICE (ORYZA SATIVA L.) UNDER DROUGHT STRESS

J. Anbumalarmathi, N. Nadarajan

Affiliations

¹Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Madurai – 625 104, India

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Cite article:- Anbumalarmathi J., Nadarajan N. (2025). ASSOCIATION ANALYSIS OF YIELD AND DROUGHT TOLERANT CHARACTERS IN RICE (ORYZA SATIVA L.) UNDER DROUGHT STRESS. Agricultural Science Digest. 28(2): 89 - 92. doi: .

ABSTRACT

A study was undertaken to know the relationship between different drought tolerant and yield component traits in rice under drought stress and to suggest selection strategy for improving grain yield. Using F2 generation of Nootripathu x ASD 18 cross combination, simple phenotypic correlation coefficients and path coefficients were worked out. Grain yield plant-1 had positive and significant association with productive tillers plant-1, grains panicle-1, 100 grain weight, root length, root dry weight, root:shoot ratio and harvest index and also positive inter correlation among themselves. Hence selection for any one of the above characters would bring in simultaneous improvement of other characters and also finally improvement in grain yield . Harvest index had high and positive direct effect on grain yield. Hundred grain weight and root length had moderate and positive direct effect on grain yield plant-1. Productive tillers plant-1, grains panicle-1, 100 grain weight, root length, root dry weight, root: shoot ratio had high and positive indirect effect on grain yield through harvest index. Hence, the traits viz., productive tillers plant-1, grains panicle-1 and 100 grain weight have to be given importance in selection process for improvement in yield, since they had positive correlation with grain yield, positive inter correlation among themselves and high indirect effect on grain yield through harvest index.

KEYWORDS

REFERENCES

Al-Jibouri, H.R. et al. (1958). Agron. J., 50:633-636.
Chandra, K. and Das, A.K.R. (2000). Crop Res., 19: 251-254.
Dewey, P.R. and Lu, H.K. (1959). Agron. J., 51:515-518
Michael Gomez, S. and Rangasamy, P. (2002). Int. J. Mendel, 19: 33-34.
Surek, H. and Beser, N. (2003). Turkish J. Agric. Forestry, 27: 77-83.
Surek, H. et al. (1998). Oryza, 35: 15-18.
Yogameenakshi, P. et al. (2004). Oryza, 41: 68-70

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