Combining Ability Analysis for Fruit Yield in Bottle Gourd [Lagenaria siceraria (Mol.) Standl]

Abstract

Present investigation was carried out during Zaid season 2019-2020 in (Y1) and Zaid 2020-2021 in (Y2) at the Main Experimental Station (MES), Department of Vegetable Science, Acharya Narendra Deva University of Agriculture & Technology, Narendra Nagar, Kumarganj, Ayodhya (U.P) with 21 genotypes with six parental line and their fifteen F1 hybrids of bottle gourd by using diallel (excluding reciprocal) mating fashion. Experiment was laid out in RBD include three replication having each experimental unit with rows space at 3 (m) apart with a plant to plant spacing of 0.50 (m). Significant variances over seasons were found for general as well as sca for all the 17 traits studied during over season pooled which suggested that both additive and non-additive gene action were most important in the expression of all the traits. Pooled combining ability analysis revealed that parents viz., P4, P6 and P2 were good general combiner for fruit yield per plant. An attempt to identify desirable parents based on gca effect as well per se performance of the most of the character studied. Among the 15 F1 crosses P3 x P4, P2 x P6 and P2 x P5 have found good specific combiners for total fruit yield per plant along with most of the other yield contributing characters follow days to first staminate flower anthesis, days to first pistillate flower anthesis, fruit length and average fruit weight.

Elucidation of Combining Ability and Gene in Bottle Gourd [Lagenaria siceraria (Mol.) Standl.]

“…The magnitude of specific combining ability variance was higher than general combining ability variance for all of the traits viz.,days to first male flower appearance, days to first female flower appearance, node number at which first male flower appearance, node number at which first female flower appearance, number of branch per plant, fruit length, fruit girth, average fruit weight , number of fruit per plant, fruit yield per plant, moisture content, total soluble solids, chlorophyll a, chlorophyll b and total chlorophyll which indicated the importance of non-additive gene effects in the inheritance of these traits, which suggesting exploitation of these traits for improvement of yield through heterosis breeding. The above results were in accordance with the findings of Gayakawad [12], Janaranjani et al [6], Khot et al [10] for days to first male flower appearance; Gayakawad [12], Janaranjani et al [6], Shinde et al [7], Khot [13], Hadiya et al [9], Khot et al [10],Patel and Mehta [11] for days to first female flower appearance; Gayakawad [12], Janaranjani et al [6] for node number at which first male flower appearance; Gayakawad [12], Janaranjani et al [6], Shinde et al [7], Khot [13], Hadiya et al [9], Khot et al [10] for node number at which first female flower appearance; Gayakawad [12], Khot [13], Khot et al [10] for number of branch per plant; Patel et al [5], Gayakawad [12], Janaranjani et al [6], Shinde et al [7], Khot [13], Khot et al [10], Patel and Mehta [11] for fruit length; Gayakawad [12], Janaranjani et al [6], Hadiya et al [9], Patel and Mehta [11] for fruit girth;, Janaranjani et al [6], Shinde et al…”

“…Which suggested a greater role of non-additive genetic variance in the inheritance of these characters. The predominant role of non-additive gene action was also reported by Patel et al [5], Janaranjani et al [6], Shinde et al [7], Rajkumar et al [8], Hadiya et al [9], Khot et al [10] and Patel and Mehta [11] in bottle gourd.…”

Combining Ability and Heterosis among Bottle Gourd [Lagenaria siceraria (Molina) Standl.] Selections for Yield and Related Traits under Drought-Stressed and Non-Stressed Conditions

“…Refs. [40,41] reported high GCA compared to SCA effects for fruit yield, indicating the involvement of additive gene action conditioning their inheritance. Analysis of heterosis in bottle gourd identified the dominant form of heterosis for plant height, fruit length, and the number of branches, aiding the identification of hybrids for use in strategic breeding and variety release [40].…”

Genetic variability and correlation coefficient for horticultural traits in bottle gourd (Lagenaria siceraria)

“…Genotypic correlation coefficient was higher than their corresponding phenotypic correlation coefficient for most of the characters except yield per plant, number of fruits per plant, fruit weight (Table 2). A perusal of data revealed that yield has positive and significant correlation with fruit weight, node at which first female flower appears, node at which first male flower appears had positive correlation coefficient among themselves (Maurya 1994). Higher and positive direct effect (at the genotypic level) on yield was exerted by number of fruits per plants followed by node at which first female flower appears, fruit weight, days to first fruit harvest, number of primary branches, days to first male anthesis and seed length.…”