STUDIES ON TIME OF TRANSPLANTING AND MULCHING ON SEED PRODUCTION OF LATE CAULIFLOWER
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Date
2019-11
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UHF,NAUNI
Abstract
ABSTRACT
The present investigations entitled “Studies on time of transplanting and mulching on
seed production of late cauliflower” were carried out in the Department of Seed Science and
Technology, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)
during 2018-2019 using cauliflower cv. Pusa Snowball K-1. There were 12 treatment
combinations comprising of four dates of transplanting (16th September, 26th September, 6th
October and 16th October) and three levels of mulching (black polyethylene mulch, silver
polyethylene mulch and no mulch). The studies revealed that out of 12 treatment
combinations, D1M1 (16th September transplanting date and mulching with black
polyethylene sheet) was the best for most of the seed yield parameters resulting in minimum
days to curd initiation (45.33), early bolters (26.55 %), days to flowering initiation (168.67),
days to 50 per cent flowering (185.67), maximum number of branches plant-1 (16.07),
maximum number of seeds siliqua-1 (17.53),maximum seed yield plant-1 (22.62g), maximum
seed yield plot-1 (422.00 g) and maximum seed yield ha-1 (625.18 kg). Effect on various seed
quality parameters was assessed under laboratory conditions. The maximum values for
germination (85.25%), SVI-I (761.70), SVI-II (258.25) and lowest electrical conductivity
(0.027 dSm-1) observed in D1M1 (16th September transplanting date and mulching with black
polyethylene sheet) were found to be significantly superior than rest of the treatment
combinations. The benefit: cost ratio was also maximum (4.01:1) in the treatment
combination, D1M1 (16th September transplanting date and mulching with black polyethylene
sheet). Thus, it can be concluded that for getting higher yield of quality seed in late
cauliflower under mid hill conditions of HP, the crop should be transplanted up to 2nd week
of September and mulched with black polyethylene sheet
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