Characterization and variability for important biometrical traits of newly developed male sterile lines of pearl millet [Pennisetum glaucum (L.) R. Br.]
Keywords: Pennisetum glaucum, pearl millet, male sterility, genetic variability
AbstractThe present study on genetic variability, heritability and genetic advance for yield and yield contributing traits was conducted in 20 newly developed male sterile lines of pearl millet, developed at the Central Arid Zone Research Institute, Jodhpur, during the rainy season of the year 2013. Significant genetic variability among genotypes was observed for all the traits studied i.e. days to flowering, plant height, ear head length, ear head girth, effective tillers per plant, ear head number, ear head weight, grain yield, 500 grain weight and panicle harvest index. Mean performance of all traits revealed that ms lines CZMS 0021A and CZMS 0008A had higher manifestation of most of the desired traits. High values of genotypic coefficients of variation and phenotypic coefficient of variation were observed for traits like grain yield per plot, ear head weight per plot and effective tillers per plant, indicating that these traits contributed significantly to the total variability. High heritability estimates were observed for grain yield per plot, ear head weight per plot, plant height and days to flowering. High genetic advance as percentage, was recorded for grain yield per plot and ear head weight per plot. Greater magnitude of heritability coupled with higher genetic advance for grain yield per plot and ear head weight/plot revealed additive genetic effects for inheritance of these traits, while, high heritability estimates with low genetic advance indicated the presence of non-additive gene action for days to flowering, plant height and ear head length.
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.