Heterosis studies in bottlegourd [Lagenaria siceraria (Mol.) Standl.].
2001
Samadia, D.K. | Khandelwal, R.C.
Experiment on heterosis in bottlegourd was conducted involving 9 parents, their 36 F 1 hybrids and one standard check. The crop was raised in RBD with three replications under four environments. The analysis of variance indicated presence of significant genetic variability in the experimental material. Mean squares due to genotypes as well as parents and hybrids, environments and their interaction effects were significant. Hybrids, Banswara Local-1 x IC 92374, Banswara Local-1 x Pusa Naveen and IC 92374 x PSPL were superior and exhibited significant economic heterosis for fruit yield per plant, number of fruits per plant and its contributing traits in all the environments. Most of the heterotic crosses were also heterobeltiotic. selected. The experimental material comprising of nine parents, their 36 F 1 hybrids (excluding reciprocals) and Varad as standard check was evaluated under four environments created by sowing the experimental material on two different dates at two different locations in a randomized block design with three replications. Each treatment consisted of a single row accommodating ten plants. The rows were spaced at 3 m apart and plant at 1 m within the row. The observations were recorded from the randomly selected 5 plants leaving the border plants on the traits, viz., number of female flowers per plant, number of fruits per plant and fruit yield per plant. Heterosis, heterobeltiosis and economic heterosis were estimated for all the characters in each environment as well as over the environment. The data on three important characters of parents and hybrids are presented in the text.
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