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Thermal and radiation effect studies of different wheat varieties in Chhattisgarh plains zone under rice-wheat cropping system

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Title Thermal and radiation effect studies of different wheat varieties in Chhattisgarh plains zone under rice-wheat cropping system
Not Available
 
Creator Chaudhary, J.L., Patel, S.R., Verma, P.K., Manikandan, N. and Rajesh Khavse.
 
Subject Growing degree days, Heat use efficiency, Radiation use efficiency, Helio-Thermal units and sowing dates
 
Description Not Available
Field experiment was conducted during Rabi seasons of 2010-11, 2011-12 and 2012-13 at Research
and Instructional Farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur to examine and study the phenology,
accumulation of growing degree days (GDD), heliothermal units (HTU), photothermal unit (PTU) and performance of
wheat (Triticum aestivam L.) of four wheat varieties grown under five different sowing dates in factorial Randomized
Block Design. It was observed that GDDs got reduced significantly with subsequent delay in sowing time. For our study
purpose and as per package of practices, 25 November D1 can be taken as early sowing and D2 - 5 December as timely
sowing conditions. The wheat varieties Amar and Sujata took highest GDD, HTU and PTU to maturity. On the mean
basis the variety Kanchan produced highest grain yield (3147 kg/ha) followed by GW-273 (2947 kg/ha). The significant
reduction in grain yield was recorded when sowing was delayed beyond D2 - December 05. Among the wheat varieties
Kanchan showed better performance in terms of RUE followed by GW-273 and Sujata. Highest HUE was observed in
wheat variety Kanchan followed by Sujata and GW-273. Varieties giving higher yield, RUE and HUE are identified
under varying growing environments so as to suggest the appropriate sowing dates of wheat varieties in Chhattisgarh
plains. GDD is giving consistent results as its variability is least varying between 3.4-5.3 per cent for different varieties
and therefore it is reliable index for studying environmental effects on wheat in this region. Lowest RUE was observed
under 5 January sowing (D5) in the all varieties which leads to conclusion that this sowing date must be avoided and
wheat crop sowing must be completed latest by 25 December to avoid adverse effects on productivity.
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Date 2018-11-20T06:55:48Z
2018-11-20T06:55:48Z
2016-07
 
Type Research Paper
 
Identifier Chaudhary, J.L., Patel, S.R., Verma, P.K., Manikandan, N. and Rajesh Khavse. 2016. Thermal and radiation effect studies of different wheat varieties in Chhattisgarh plains zone under rice-wheat cropping system. Mausam, 67 (3): 677-682
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http://krishi.icar.gov.in/jspui/handle/123456789/12272
 
Language English
 
Relation Not Available;
 
Publisher India Meteorological Department