Yield component analysis in niger (Guizotia abyssinica Cass)

Abstract

In thirty genotypes of niger, a substantial genetic variability was observed for seven characters. Heritability estimates was low for primary branches/plant and high for remaining all characters. High heritability along with high genetic advance was observed for capsules/plant and plant height indicating predominance of additive genetic action. The significant positive correlation of seed yield with days to maturity, seeds/capsule was observed. Genoypic correlations were observed larger in magnitude than their respective phenotypic correlations, indicating that selection for correlated characters could give better yield response to selection. A phenotypic as well as genotypic correlations among days to maturity, plant height, seeds/capsule and 1000 seed weight and their positive association with seed yield was observed indicating that these are the major yield components in niger. Days to maturity, seeds/capsules and 1000 seed weight had large and positive direct effect on seed yield.

DOI

https://doi.org/10.29321/MAJ.10.A00458

Pages

260 - 263

Creative Commons

Copyright

© The Author(s), 2025. 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.

Keywords