Effect of sowing time, varieties and plant growth regulators on growth, physiological indices and productivity of coriander (Coriandrum sativum)

Published Date
September 30, 2015
Type
Journal Article
Effect of sowing time, varieties and plant growth regulators on growth, physiological indices and productivity of coriander (Coriandrum sativum)
Authors:
B. R. Kuri
N.L. Jat, A.C. Shivran, Yashpal Singh Saharawat, Ram Swaroop Bana, R.S. Dadarwal

A field experiment was conducted during winter (rabi) seasons of 2011–12 and 2012–13 at Agronomy Farm, Jobner, Rajasthan, to study the response of coriander (Coriandrum sativum L.) varieties to plant-growth regulators under normal and late-sown conditions grown on irrigated loamy sand soil of semi-arid Eastern Plains Zone of Rajasthan. The experiment consisting of 2 sowing times (normal in the first week of November and late sown in the third week of November), 3 varieties (‘RCr 41’, ‘RCr 435’ and ‘RCr 480’) and 5 plant-growth regulators (PGR), i.e. control (water sprayed), triacontanol @ 1,000 ppm, brassinolide @ 1 ppm, thiourea @ 1,000 ppm and naph- thalene acetic acid (NAA) @ 50 ppm at 40 and 70 days after sowing (DAS) making 30 treatment combinations, were replicated thrice in split a plot design, keeping dates of sowing and varieties in main-plots and PGR treat- ments in subplots. The crop sown at normal sowing time showed significantly higher values of the growth param- eters and physiological indices and seed yield (1.48 t/ha), stover yield (2.20 t/ha) and net returns (   32,810/ha) than the late-sown crop. Variety ‘RCr 435’, being at par with ‘RCr 480’, showed significantly higher growth and bet- ter physiological indices at all the growth stages. However, the highest seed (1.37 t/ha) and stover (2.03 t/ha) yields and net returns (   28,478/ha) were obtained from ‘RCr 480’ coriander. Foliar spray of 1,000 ppm thiourea significantly increased the crop growth at all the stages/phases over other PGRs and remained at par with triacontanol. However, foliar spray of 1,000 ppm triacontanol significantly increased the seed (1.40 t/ha) and sto- ver (2.12 t/ha) yields and net returns ( 30,020/ha) as compared to the other PGRs, while it was at par with brassinolide.

Citation:
B. R. Kuri, N. L. Jat, A. C. Shivran, Yashpal Saharawat, Ram Swaroop Bana, R. S. Dadarwal. (30/9/2015). Effect of sowing time, varieties and plant growth regulators on growth, physiological indices and productivity of coriander (Coriandrum sativum). Indian Journal of Agronomy, 60 (3), pp. 464-470.
Keywords:
pgrs
physiological indices
sowing time
coriander
varieties
yields