Effect of sowing time on productivity and thermal utilization of mustard (Brassica juncea) under sub-tropical irrigated conditions of Jammu

Authors

  • MEENAKSHI GUPTA Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar, India
  • CHARU SHARMA Agromet Research Centre, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, Chatha-180009 J &K
  • RAJEEV SHARMA Agromet Research Centre, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, Chatha-180009 J &K
  • VIKAS GUPTA Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar, India
  • M. K. KHUSHU Agromet Research Centre, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, Chatha-180009 J &K

DOI:

https://doi.org/10.54386/jam.v19i2.688

Keywords:

Sowing dates, growing degree days, heliothermal units, photo-thermal unit, heat use efficiency

Abstract

Field experiments were conducted to study the effect of weather variability on mustard crop at Research Farm of Agromet Research Centre, SKUAST-J, Chatha, Jammu during rabi seasons of 2010- 11 to 2012-13. Treatments were comprised of three sowing dates (9th October, 24th October and 8th November) and two cultivars of mustard (RL-1359 and RSPR-01). The results revealed that days taken to
physiological maturity and yield reduced significantly with delayed sowing. Mustard crop sown on 9th October utilised more thermal, and heat units as compared to 24th October and 8th November sown crops. The shortening of the duration of the crop sown late was due to forced maturity because of higher temperature during reproductive phase of the crop. Heat use efficiency (HUE) was found to be higher for earlier sown crop and it decreased with delay in sowing. Correlation studies indicated that lower night temperature during vegetative phase is favourable and higher day temperature during reproductive phase is not favourable for mustard yield.

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Published

01-06-2017

How to Cite

MEENAKSHI GUPTA, CHARU SHARMA, RAJEEV SHARMA, VIKAS GUPTA, & M. K. KHUSHU. (2017). Effect of sowing time on productivity and thermal utilization of mustard (Brassica juncea) under sub-tropical irrigated conditions of Jammu. Journal of Agrometeorology, 19(2), 137–141. https://doi.org/10.54386/jam.v19i2.688

Issue

Vol. 19 No. 2 (2017): June

Section

Research Paper

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