Study on the Correlation Co-efficient of Plant Characters on the Yield of Paddy Cultivars Bhavani and IR 200

Abstract

Yield of a crop is the net result of the combined action of the various yield components which are mainly influenced by the agronmical mani-pulations. Contribution of the growth characters, quality characters and yield components under late sown paddy vorieties Dhavani and IR 20 have not so far been well established. A study on the relation between yield and the characters affecting yield would therefore anahle us to exploit the potentialities of the cultivar to the extent possible by manipulating agro-nimical operations. Hence, a study was undertaken at Agricultural College and Research Institute, Madurai during 1976 to 76 in a replicated trial to study the relationship between the characters, number of Productive Tillers, Leaf Area Index, Days to bÜ per cent flowering. Plant Height at maturity, Panicle length, Grain number/panicle. Percentage of sterility and 1000 grain weight which contributo the direct and indirect effect on the yield. The rice cultivars | R 20 and Bhavani were sown under six dates at fortnight intervals commencing from July 75 to January 76, with three levels of fertlizer 90:45:45: 120:60:60: and 150.75:75 N:P:K Kg/ha. The results of the pre-sowing soil sample analy-sis revealed that the soil was of low in available Nitrogen and Potash and medium in available phosphorus with

DOI

https://doi.org/10.29321/MAJ.10.003258

Pages

481 - 484

Creative Commons

Copyright

© The Author(s), 2026. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

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