Heterosis and combining ability studies on yield, quality and storage traits involving bush and butternut type genotypes in pumpkin (Cucurbita moshata Duch. ex Poir.)
| dc.contributor.advisor | Sidhu, Mohinder Kaur | |
| dc.contributor.author | Nishan Singh | |
| dc.date.accessioned | 2017-06-14T10:16:10Z | |
| dc.date.available | 2017-06-14T10:16:10Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | The present study was conducted in diallel fashion to estimate combining ability and heterosis involving bush and butternut type genotypes of pumpkin. Among nine parents, MSBN 3621-9-3-1 was the best combiner for characters related to bushy growth habit, butternut fruit type and earliness; CFR 2211-2 for number of primary branches, early female flowering, TSS and dry matter; MBN 6242-3-1 (Butternut type) for pulp thickness (0.44) and fruit yield per vine (0.63); MVSR 6711-14-2 for early male flowering and vitamin-C; BN-364 for number of fruits per vine (0.22) and total carotenoids. Among bushy and butternut crosses, number of primary branches, internodal length, early flowering and fruiting, fruit shape index, fruit yield per vine, TSS and dry matter content and vitamin-C were controlled by additive as well as non-additive gene effects and can be exploited through heterosis breeding or recurrent selection. High additive and additive × additive genetic variance for peduncle length, polar diameter, pulp thickness, total carotenoids and total sugar highlighted the exploitation through selection. However, non-additive gene effects for short vine, equator diameter, number of fruits per vine and less average fruit weight suggested use of heterosis breeding. On the basis of significant economic heterosis over PPH-1 and PPH-2, crosses MBN 6242-3-1 × CFR 2211-2 (122.56 and 176.51%, respectively) was best for yield per vine and BUMOV 41212-3-1 × BN-364, PS × BN-364, BUMOV 41212-3-1 × MSBN 3621-9-3-1, MSBN 3621-9-3-1 × MBN 6242-3-1 were best for less fruit weight as well as more number of fruits per vine among bushy and butternut genotypes. On the basis of per se performance, MSBN 3621-9-3-1 × MBN 6242-3-1 (34.76 MT/ha), MSBN 3621-9-3-1 × CFR 2211-2 (33.02 MT/ha), BN-364 × MSBN 3621-9-3-1 (32.07 MT/ha), MVSR 6711-14-2 × MSBN 3621-9-3-1 (30.81 MT/ha) were high yielding bushy hybrids with early maturity and butternut fruits. In character association, vine length was highly correlated with internodal length (0.85) and earliest node to female flower (0.85). Fruit yield per vine was highly associated with average fruit weight (1.00), node to first fruit (0.98) and vine length (0.97), while average fruit weight was influenced with quality traits such as total sugar (0.34) and vitamin-C (0.31). | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810020177 | |
| dc.keywords | Bush pumpkin, butternut fruit, combining ability, heterosis, pumpkin, Cucurbita moshata Duch. ex Poir | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 107 | en_US |
| dc.publisher | Punjab Agricultural University, Ludhiana | en_US |
| dc.research.problem | Heterosis and combining ability studies on yield, quality and storage traits involving bush and butternut type genotypes in pumpkin (Cucurbita moshata Duch. ex Poir.) | en_US |
| dc.sub | Vegetable Science | en_US |
| dc.subject | null | en_US |
| dc.theme | bush and butternut type genotypes in pumpkin | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Heterosis and combining ability studies on yield, quality and storage traits involving bush and butternut type genotypes in pumpkin (Cucurbita moshata Duch. ex Poir.) | en_US |
| dc.type | Thesis | en_US |