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|Advisor:||Singh, Vijay Kumar|
|Title:||Effect of sowing date and plant spacing on seed yield of early cauliflower (Brassica oleracea var. botrytis L.)|
|Publisher:||Department of Horticulture (Vegetable and Floriculture), BAU, Sabour|
|Abstract:||Cauliflower (Brassica oleracea var.botrytis L.) is one of the most important vegetable in India and belongs to the family cruciferae. Cauliflower is cross-pollinated crop. It is grown for its white tender curd and contains substantial amount of protein, carbohydrates, phosphorus, calcium, iron and ascorbic acid. Cauliflower thrives best in cool and moist climate and it does not withstand very low temperature or too much heat (Din et al., 2007). There are, however, varieties that can withstand a fairly high temperature. After the development of tropical varieties it is now possible to grow cauliflower almost throughout the year particularly in north and central parts of the country. The seed of early and mid season varieties is produced in subtropical climate of north Indian plains but that of late group is produced only temperate climate of high hills. The temperature in Bihar remains higher up to end October and after which gradually comes down in mid December and extend up to mid February and temperature increases sharply thereafter. It is highly sensitive to temperature variations and slight variation in temperature may cause complete crop failure and low yield and productivity. Traditionally cauliflower is planted at a wider spacing resulting into low productivity. The planting density and time of sowing play an important role in improving the productivity of curd and quality seed yield of cauliflower. Keeping the above facts in view the present investigation was framed with four sowing date (25thJuly, 10thAugust, 26thAugust and 10th September) and four plant spacing (50 × 40 cm, 50 × 50 cm, 60 × 50 cm and 60 × 60 cm) having 16 treatment combinations. The experiment was laid out in R.B.D (Factorial) and replicates thrice. The research work was carried out at vegetable seed production area, BAU, Sabour, Bhagalpur during kharif season 2016-17. The result of the present investigation indicates that the main effect of date of sowing and plant spacing as well as their interaction effect were found significant. The significantly highest plant height (63.93cm), leaf area (97.00cm2), polar diameter (10.3cm) and equatorial diameter (21.20cm) were recorded when the seed sown on 10th August and seedlings were transplanted at spacing of 60 × 60cm. Significantly no. of branches/plant, no. of siliqua/plant, no. of seed/siliqua, seed yield/plant, seed yield (q/ha) and 1000 seed weight were obtained when sowing was done on 10th Aug. and transplanted at spacing of 60 × 60cm. The results revealed that the significantly maximum germination%, seedling length, seedling dry weight, vigour index-I and vigour index-II were recorded when seed were sown on 10th Aug. and transplanted at spacing 60 × 60cm. The electric conductivity was least when seed sown on 10th Aug. The maximum net return (Rs.11,36,576.00/ha) with higher benefit-cost ratio (6.65) were obtained when seed were sown on 10th August and transplanted at the spacing of 60 × 60cm i.e. D2S4.|
|Theme:||Vegetable & Floriculture|
|Appears in Collections:||Theses|
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