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Effect of sowing time and chemical foliar sprays on the productivity and cold injury management in castor (Ricinus communis L.)

KrishiKosh

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Title Effect of sowing time and chemical foliar sprays on the productivity and cold injury management in castor (Ricinus communis L.)
 
Creator P. S. John Daniel
 
Contributor Yadav, J.S.
 
Subject DMSO, H2SO4, Thiourea, Salicylicacid, Relative water content, Leaf water potential, Chlorophyll Index, Membrane Injury, Grain yield, Gross returns, Net returns, B:C ratio
 
Description A field experiment entitled “Effect of sowing time and chemical foliar sprays on the productivity and cold
injury management in castor (Ricinus communis L.)” was conducted during 2013-14 and 2014-15 at regional research
station, Bawal, Chaudhary Charan Singh Haryana Agricultural University. The experiment was laid out in split plot
design on loamy sand soil. Treatments comprised of four dates of sowing viz., 20th June, 5th July, 20th July and 5th
August and four chemical foliar sprays along with water and no spray check viz., DMSO (78 ml ha-1), H2SO4 (0.1%),
Thiourea 500 ppm, Salicylic acid 100 ppm that are replicated thrice.
Among the different dates of sowing, 20th June resulted in significantly higher growth and yield parameters
during 2013-14 and 2014-15 crop seasons compared to other dates of sowing. Application of H2SO4 (0.1 %) showed
substantial effect in growth and yield attributes as compared to other foliar sprays during both the crop seasons. 20th
June date of sowing produced significantly higher grain yield i.e,., 5157 kg ha-1 during 2013-14 and 5412 kg ha-1
during 2014-15 as well pooled grain yield 5285 kg ha-1 as compared to the 20th July and 5th August sowing dates, but
difference in 20th June and 5th July sowings was at par with each other. Application of H2SO4 (0.1 %) showed
significantlu effect on grain yield (4703 kg ha-1) during 2013-14 and during 2014-15 (4869 kg ha-1) as well as on
pooled basis (4786 kg ha-1) compared to ther foliar sprays, but it was statistically at par with DMSO (78 ml ha-1).
Sowing during 20th June along with application of H2SO4 (0.1 %) registered higher relative water, leaf water potential,
chlorophyll index and lower membrane injury as compared to different sowing dates and chemical foliar sprays during
2013-14 and 2014-15 crop seasons. Higher female flowers recorded more under 20th June followed by 5th July under
various sowing dates and H2SO4 (0.1 %) registered more female flowers among different foliar sprays during 2013-14
and 2014-15 crop seasons. Visual injury observed higher in 5th August as compared to different sowing dates and
application of H2SO4 (0.1 %) showed substantial and less visual injury during both the years. In the year, gross returns
(Rs. 203702 ha-1 during 2013-14 and Rs. 216480 ha-1 during 2014-15), net returns (Rs. 150622 ha-1 and 163809 ha-1)
and B:C ratio (3.84 and 4.11, respectively) were significantly higher with 20th June date of sowing as compared to
other sowing dates. Among the chemical foliar sprays, H2SO4 (0.1 %) significantly recorded higher gross returns (Rs.
185769 ha-1 and Rs. 196080 ha-1), net returns (Rs. 130759 ha-1 and Rs. 141479 ha-1) and B: C ratio (3.39 and 3.59,
respectively) when compared to other foliar sprays.
 
Date 2016-11-25T13:29:09Z
2016-11-25T13:29:09Z
2016
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/87510
 
Language en
 
Format application/pdf
 
Publisher CCSHAU