• M. KARMAKAR
• N. CHATTOPADHYAY
• U. THAPA

An investigation was carried out during 2017-2018 in the naturally ventilated arched saw teeth type polyhouse in the Faculty of Horticulture, BCKV, Mohanpur, Nadia, WB, India. The main objective of the investigation is to find out the suitable date of sowing of Coriander (local cultivar Khusboo) for getting maximum yield as well as the quality parameters under protected condition of new alluvial zone of West Bengal. The Experiment was laid out in RBD with six replications and five different dates ( i.e. 5th September, 5th October, 5th November, 5th December and 5th January) as treatments in 1.5 m × 1.2 m plot size with spacing of 30 cm × 15 cm. It was revealed from the study that 5th October sown seeds have maximum number of umbels per plant (43.36), number of umbellate per umbel (6.00), number of seeds per umbel (21.55), seed yield per plot (342.01 g) and projected seed yield (1075.62 kg ha-1) than other sowing dates. In case of quality parameters, total chlorophyll content of leaves found to be maximum (7.46 mg100 g-1) under 5th December sown seeds. The highest β-carotene content (10.45 mg100 g-1) and ascorbic acid content (127.20 mg100 g-1) was observed from the leaves of 5th December and 5th November sown seeds, respectively. Seeds sown in the month of October and November showed the highest oleoresin percentage of 0.18. The 5th October sown coriander seeds gave the highest net return of Rs. 59,937.60 ha -1 with a maximum benefit cost ratio of 3.30. From the above investigation it may be concluded that for maximization of yield of coriander under protected condition, the suitable date of sowing is suggested as 5th October followed by 5th September and 5th November under the new alluvial tracts of West Bengal.

Coriander, cultivar, date of sowing, protected condition, yield

"Response of different sowing dates on phenology, yield and quality of Coriander (Coriandrum sativum L.) under protected condition", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.460-466, February-2019, Available :http://www.jetir.org/papers/JETIR1902765.pdf

"Response of different sowing dates on phenology, yield and quality of Coriander (Coriandrum sativum L.) under protected condition", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp460-466, February-2019, Available at : http://www.jetir.org/papers/JETIR1902765.pdf