Vol. 7, Issue 1 (2019)
Estimation of heterosis and combining ability for earliness and vegetative traits in bottle gourd [Lagenaria siceraria (Molina.) Standl.]
Author(s): Jayanth S, Dr. Makhan Lal, Dr. DS Duhan and Vidya R
Abstract: Bottle gourd [Lagenaria siceraria (Mol.) Standl.] being an under exploited cucurbitaceous vegetable has a wide range of variability. Exploitation of hybrid vigour provides ample scope for improving the genetic architecture of bottle gourd. The investigation was carried out using 6×6 half diallel mating system and the parents and hybrids were evaluated for earliness and vegetative traits. The genotypes showed significant differences for all the characters under study. Evaluation of the parents based on gca effects revealed that the parent Punjab Komal was the best combiner for all the earliness traits under study except for days to fifty percent flowering while, the parents KBG-16 and GH-22 was the best general combiner for number of primary branches per vine and vine length at final harvest. For earliness traits, the hybrid from the cross Pusa Naveen×Punjab Komal showed significantly higher negative standard heterosis and significant sca effects for a number of traits under study. For vegetative traits, the hybrid from the cross KBG-16×Pusa Samridhi showed highly significant heterosis and sca effects for most of the traits.
How to cite this article:
Jayanth S, Dr. Makhan Lal, Dr. DS Duhan and Vidya R. Estimation of heterosis and combining ability for earliness and vegetative traits in bottle gourd [Lagenaria siceraria (Molina.) Standl.]. 2019; 7(1): 20-25.