Thermal requirement of oilseed Brassica cultivars at different phenological stages under varying environmental conditions


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Authors

  • Sumana Roy National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan
  • R L Meena National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan
  • K C Sharma National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan
  • Vinod Kumar National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan
  • C Chattopadhyay National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan
  • S A Khan National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan
  • N.V.K Chakravarthy National Research Centre on Rapeseed-Mustard, Sewar, Bharatpur, Rajasthan

Keywords:

Brassica, Growing degree-days, Phenological stages, Sowing dates, Temperature, Seed yield

Abstract

Field experiments were conducted during three post rainy (rabi) seasons of 2001-2004 at Bharatpur, New Delhi and Mohanpur to study the effect of sowing dates and cultural environment on accumulation of growing degree-days vis-a-vis occurrence of different phenological events on oilseed Brassica cultivars 'Varuna', 'Rohini', 'Pusa Jaikisan' [Brassica juncea (L.) Czem. and Coss.] and 'Binoy' (B, rapa L. var yellow sarson) sown at seven-day intervals starting from 1 October. October sown crop recorded higher seed yield due to exposure to higher growing degree-days. Variations were also noticed among locations. Equation developed from the study can be used for simulation of phenology and growth of mustard.

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Submitted

2011-08-23

Published

2005-11-05

Issue

Vol. 75 No. 11 (2005)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

Roy, S., Meena, R. L., Sharma, K. C., Kumar, V., Chattopadhyay, C., Khan, S. A., & Chakravarthy, N. (2005). Thermal requirement of oilseed Brassica cultivars at different phenological stages under varying environmental conditions. The Indian Journal of Agricultural Sciences, 75(11). https://epubs.icar.org.in/index.php/IJAgS/article/view/9269