Genetic variability of quantitative characters over diverse environments in maize inbred lines
Abstract
Twenty maize inbred lines procured from Maize Research Station, Bhiloda were evaluated during Kharif, 2019 over three diverse environments. Variability studies results from pooled environment revealed that PCV was higher in magnitude than GCV for all the characters studied. Grain yield per plant manifested a higher magnitude of GCV and PCV (34.07 and 47.76 %). Heritability estimates ranged from 21.18 per cent for harvest index to 99.04 per cent for protein content. Grain yield and biological yield per plant manifested moderate heritability estimates united with a high genetic gain of 50.06 and 45.03 per cent, respectively. At both genotypic and phenotypic levels, grain yield per plant showed a strong and positive association with plant height, ear height, cob length, cob girth, hundred grain weight, biological yield per plant and harvest index. Genotypic path studies showed the biological yield per plant had the highest and direct positive effect on grain yield per plant followed by harvest index, ear height, cob length and cob girth.
Key words: Maize, Correlation, genetic advance, genetic variability, heritability and path analysis.
It is certified that:
- The corresponding author is fully responsible for any disputes arising due to the publication of his/her manuscript.
- The article has been seen by all the authors who are satisfied with its form and content.
- The sequence of names of authors in the by-line is as per their relative contribution to this experiment, giving due credit to all scientists who made notable contribution to it.
- All the authors fully understand that inclusion of any other co-authors or exclusion of any co-authors is not possible once the article has been submitted to the journal.
- The corresponding author takes full responsibility for this article.
- The address of the organization where the research was conducted is given.
- The article is exclusive for this journal, and the results reported here have not been sent (and will not be sent during its consideration by this journal) for publication in any other journal.
- Authors agree to abide by the objective comments of referees and do agree to modify the article into a short note as per the recommendation, for publication in the Electronic Journal of Plant Breeding.
- If published in Electronic Journal of Plant Breeding, the copyright of this article would vest with the Indian Society of Plant Breeders, who will have the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in it, and neither we nor our legal heirs will have any claims on royalty.
