Evaluation of f1 hybrids of cucumber (Cucumis sativus L.) for early fruit yield in polyhouse under tarai condition of Uttarakhand
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Date
2013-06
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Cucumber (Cucumis sativus L., 2n=2x=14), an economically important member of the gourd family, Cucurbitaceae. A number of varieties/hybrids have been recently developed in the country in this crop but little effort has been made so far to evaluate them for their suitability of growing under green house conditions. In this context, present study was planned with the objectives to evaluate promising parthenocarpic and monoecious F1 hybrid varieties of cucumber in a naturally ventilated polyhouse for flowering, maturity, plant architecture, yield and yield attributes during the rabi as well as summer season. The experiment involving 10 genotypes includes five parthenocarpic varieties namely Hilton, Kian, Isatis, PPC-2 and PPC-3 and five monoecious F1 hybrids namely Malini, Kamini, Sheetal, Alamgir CT-180 and NS-404, collected from different sources. The experiment was conducted during the rabi season of 2012-13 and summer season of 2013 at the Precision Farming Development Centre (PFDC) of the G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand. The experiment was laid out in a randomized block design (RBD) using four replications. Each genotype had one row 3 m long with a plant spacing of 60 × 60cm. Appreciable performances were recorded for twelve horticultural traits. The ten genotypes had a wide range of variation for most of the characters under investigation. For fruit yield per hectare in rabi season, the genotypes Kian (200.15 q), Isatis (188.78 q), and Hilton (144.30 q) were the top performers and superior over the check variety PPC-3 (122.22 q), however, Sheetal was the least yielder genotype with 82.13 q/ha fruit yield and in summer season, the genotypes Malini (590.76 q), Hilton (572.80 q), and NS-404 (523.77 q) were the top performers and superior than the check variety PPC-3 (449.02 q)however, Sheetal was the least yielder genotype with 318.19 q/ha fruit yield. The high fruit yield recorded in the genotypes has been directly attributed to increased number of fruits per plant. The economic analysis of cucumber was carried out for three months and the B:C ratio obtained was 0.94 in Kian during the rabi season and 1.92 in Malini during the summer season. Therefore, it is recommended that such genotypes can be grown for commercial cultivation in the farmer’s field under protected cultivation under Tarai condition of Uttarakhand.
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