National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present investigation was carried out in two different seasons with aim to assess the heterobeltosis and standard heterosis in bottle gourd. The present study was comprised of 45 crosses developed through diallel mating design using 10 parents namely, NDBG-49-2 (P1), N. Rashmi (P2), N. Prabha (P3), N. Pooja (P4), Pusa Naveen (P5), Pb. Komal (P6), NDBG S-1 (P7), PBOG-3 (P8), NDBG-11 (P9) and Faizabadi Local (P10) at MES, Vegetable Science, NDUA&T, Kumarganj, Faizabad (U.P.) India during kharif 2015 (E1), and Rabi, 2015-16 (E2). The experiments were laid out in RBD with three replications having each experimental unit of single row with spacing of 3.0 m × 0.5 m. The observations were recorded on parents and F1’s for eighteen quantitative traits including six quality traits viz days to first staminate flower anthesis, days to first pistillate flower anthesis, node number to first staminate flower, node number to first pistillate flower appearance, days to first fruit harvest, vine length at last picking stage (m), number of primary branches per plant, fruit length (cm), fruit circumference (cm), fruit weight (kg), number of fruits per plant, fruit yield per plant (kg), total soluble solids (°B), ascorbic acid (mg/100 g fresh fruit), reducing sugar (%), non-reducing sugar (%), total sugars (%) and dry matter content in fruit (%).The present heterobeltiosis for fruit yield per plant heterosis range from -3.84 (P2 x P7) to 64.49 % (P5 x P8) in pooled in over better parent. The best five crosses which showed positive and significant heterosis over better parent were P3 x P9 (67.26 %), P5 x P8 (64.49 %), P6 x P9 (63.58 %), P4 x P5 (60.66 %) and P2 x P4 (58.76 %) Standard heterosis range from were 9.80 (P4 x P8) to 69.17 % (P3 x P9) in pooled. The best five crosses which showed desirable and significant positive standard heterosis in the pooled analysis were P3 x P9 (69.17 %), P6 x P9 (65.45 %), P5 x P8 (64.49 %), P4 x P5 (60.66 %) and P7 x P9 (56.80) for fruit yield per plant indicating that there was a great scope of realizing higher yield in bottle gourd through heterosis breeding.
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