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Subject: Vegetable Science × Author: Abdurahman × Start date: 2003 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of trace elements and growth regulators on growth, yield and quality of bottle gourd
    (CCSHAU, 2018) Abdurahman; Duhan, D.S.
    The present experiment comprising of three levels of trace elements each, i.e., ZnSO4 0.25, 0.50 and 0.75%, MnSO4 0.30, 0.40 and 0.50% and Boric acid 0.2, 0.3 and 0.4% along with three growth regulators (NAA 200, 250 and 300 ppm, GA3 25, 50 and 75 ppm and Ethrel 100, 150 and 200 ppm) and control, was conducted at Research Farm and in Laboratory of the Department of Vegetable Science, CCS Haryana Agricultural University, Hisar during spring summer season of 2017-18 to study the effect of trace elements and growth regulators on growth, yield and quality of bottle gourd cv. GH-22. The 19 treatment combinations were laid out in randomized block design (factorial) and for laboratory studies in completely randomized design with three replications. The results clearly indicated that Ethrel 200 ppm sprayed at 2 and 4 leaf stage significantly increased the plant growth, yield and quality parameters as compared to control treatment. The longest vine length (487 cm), lowest node to first male flower (6.7) and days to first male (46.7 days) were observed in treatment GA3 75 ppm. The number of primary branches per vine (17.7), longest fruit length (32.9 cm) with more diameter (7.5 cm), days to early picking (62.7 days), fruiting duration (49 days), pisttilate flowers per plant (17.0), number of fruits per vine (7.7), average fruit weight (833.3 g), fruit yield per plot (24.4 kg) and per hectare (361.1 q), total soluble solids (3.7%), total sugars (2.11 mg/100g) and ascorbic acid content (7.8mg/100g) were recorded maximum in plants sprayed with Ethrel 200 ppm. Minimum intermodal length (11.7 cm), days to first female flower (57.3 days), number of staminate flowers (104.3) and male to female sex ratio (6.1) was recorded in plants where Ethrel 200 ppm was sprayed. From the study, it is concluded that bottle gourd plants of cv. GH-22 when sprayed with Ethrel 200 ppm at 2 and 4 leaf stage gave the maximum income with a cost benefit ratio of Rs. 2.51 closely followed by Ethrel 150 ppm.