Heterosis for yield and yield components in Tomato (Lycopersicon esculentum Mill)
Keywords: Tomato, Heterosis, yield, component, significant.
AbstractA trial comprising 15 hybrids and 8 parental lines was in conducted a randomized block design with three replications during
winter 2010-11 at Vegetable Research Farm, Banaras Hindu University, Varanasi, India. Heterosis was estimated in fifteen
single experimental cross hybrids, obtained by five parental lines namely H-24, DT-2, CO-3, Punjab Upma, Pant T-3 and
three testers of tomato viz. Floradade, Kashi Sharad, Azad T-5 for yield and yield related traits; plant height, days to 50%
flowering, number of fruits per plant, average fruit weight, fruit diameter, number of fruits per cluster and total yield per
plant. Significant differences among genotypes were observed for all the traits. Positive and highly significant heterosis was
found for number of fruits per plant 25.27%, 25.13% and 21.13% over better parent and 29.95%, 25.27% and 24.46% over
standard parent and for total yield per plant 32.06%, 18.34%, 13.36% and 11.27% over better parent and 31.83%, 31.14%,
30.10% and 25.26% over standard check ‘Azad T-5’. The hybrid also showed significantly high percentage of positive
heterosis over better and standard parent for number of fruits per cluster, average fruit weight and the hybrids showed
negative heterosis for plant height and day to 50% flowering which are desirable characters.
How to Cite
Ravindra Kumar, K. Srivastava, J. Somappa, Sunil Kumar and R. K. Singh.
Heterosis for yield and yield components in Tomato Lycopersicon esculentum Mill. 2012. Electronic Journal of Plant Breeding, 3 2, 800-805. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/505
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.