Assessment of genetic diversity of maize (Zea mays L.) hybrids under water logging condition
The screening of fifty five CIMMYT maize hybrids was carried out to estimate the genetic diversity which was evaluated undermanaged waterlogged or excess soil moisture condition, indicated presence of considerable diversity. The experiment was conducted in an alpha lattice design with two replication and phenotypic data were analyzed using fifteen agro-morphological traits. The fifty five maize single cross hybrids grouped into eight clusters based on Mahalanobis D2 statistic. Among them cluster I accommodated maximum number of inbred lines (41) followed by cluster V (8). Presence of six solitary clusters indicated larger genetic diversity. The character plant height showed highest contribution towards genetic divergence followed by number of kernel per row, ear height, number of rows per ear, grain weight per plot and 100 seed weight. Based upon the divergence studies suggesting crossing may be made between genotypes of cluster II (P3502) and V (ZH17505, ZH17507, ZH17497, ZH15567, ZH15557, ZH15564, ZH15563 and ZH15562), and the hybrid in these cluster could be used as donor parents for new double cross maize hybrid development for improving yield under water logging condition.
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.