Studies on genetic parameters in okra [Abelmoschus esculentus (L.) Moench]
Abstract
The present investigation was conducted at a vegetable research farm, BUAT, Banda during the summer and rainy seasons, 2019, to determine the extent of variability, heritability and genetic advance. Analysis of variance indicated a significant difference among the genotypes for different characters. During the summer season the characters, yield (q ha-1) and yield per plant exhibited higher PCV and GCV estimates than rest of the characters and during rainy season days to 50% germination exhibited higher PCV and GCV estimates suggesting that there is the possibility of improving these traits through selection. The difference between PCV and GCV values during the summer season was high for fruit length, days to 50% germination and node to the first flower appear. Whereas, for the rainy season difference was high for fruit length and the number of fruits per plant suggesting the role of environment in expression of these traits. In present study, heritability estimates were high for yield (q ha-1), yield per plant, days to 50% flowering, days to first harvesting, the number of leaves at 90 DAS and the number of fruits per plant during the summer season and for the rainy season heritability estimates were high for yield (q ha-1), plant height at 90 DAS, the number of leaves at 90 DAS, yield per plant and days to 50% germination indicating that the selection based on phenotypic performance of these characters would be more operative. High genetic advance as per cent of mean for the summer season was recorded for yield (q ha-1), yield per plant and the number of fruits per plant. Whereas, for rainy season it was recorded high for days to 50% germination and plant height at 90 DAS. On the basis of mean performance, the fruit yield (q ha-1) was recorded maximum in genotype Kashi Pragati followed by Arka Nikita, Hisar Unnat and Phule Vimukta during the summer season. Whereas, for the rainy season genotype Hisar Naveen having maximum yield (q ha-1) followed by Varsha Uphar, Pusa Sawani and Akola Bahar.
Keywords: Okra, variability, heritability, performance
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.
