MANAGEMENT PRACTICES FOR AMELIORATING GROWTH AND YIELD OF BOTTLE GOURD
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Date
2022-11
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Publisher
UHF,NAUNI
Abstract
Abstract
The present investigation titled “Management practices for ameliorating growth and yield of
bottle gourd” was conducted during Kharif season of 2021 at the experimental farm, Department of
Vegetable Science, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, (Nauni)
Solan (HP).The different integrated modules consisting of use of chemical (fungicides and
micronutrients) and non-chemical (beejamrit, jeevamrit, Trichoderma viride and Bacillus subtilis)
were evaluated for their efficacy in enhancing the different growth, yield and seed parameters in
bottle gourd. Analysis of variance revealed the significant varied response of different treatment
modules on most of the growth, yield and seed parameters of bottle gourd. The combined application
of fungicides, biocontrol agents and micronutrients were found more promising in enhancing growth,
yield and seed quality parameters as well as reducing disease severity in bottle gourd as compared to
the independent application of fungicides. Among different treatment modules, the treatment module
consisting of seed treatment with carbendazim @ 0.25% followed by application of multi
micronutrient mixture @ 5 kg/ha at the time of earthing up and four periodic sprays of azoxystrobin +
chlorothalonil @ 0.25 % at 15 days interval started 30 days of crop emergence, proved most
promising for enhancing growth, yield and seed parameters viz. vine length (8.82 m), numbers of
primary branches/vine (9.67), number of male flowers/vine (170.73), number of female flowers/vine
(21.87), per cent fruit set (46.04), number of fruits/plant (10.07), fruit length (32.2 cm), fruit width
(8.17 m), fruit weight (660.60 g), fruit yield [per vine (6.65 kg), per plot (99.75 kg) and per hectare
(591.12 q)], marketable yield [per plot (90.77 kg) and per hectare (537.92 q)], 100 seed weight (24.37
g), seed germination percentage (97 %), seedling length (41.78 cm), seedling dry weight (96.16 mg),
Seed Vigour Index-I (4052.70), Seed Vigour Index-II (9327.18 ) besides reducing the severity of
economically important diseases (downy mildew and anthracnose) manifested highest net return of
(₹8,14,633/ha) with B:C ratio of (3.12). The non-chemical treatment modules consisting use of
beejamrit, jeevamrit and Trichoderma viride for treating seed, soil and foliar application were also
found potent in increasing growth and yield parameters exhibiting net returns of (₹5,81,173/ha -
₹6,40,658/ha) with B:C ratio (2.35-2.42) for organic production of bottle gourd.