Thermal requirements, heat use efficiency and plant responses of Indian mustard (Brassica Juncea) for different levels of nitrogen under different environments

Authors

  • P.KEERTHI Department of Agronomy, College of Agriculture, CCS Haryana Agricultural University, Hisar-125004
  • R.K.PANNU Department of Agronomy, College of Agriculture, CCS Haryana Agricultural University, Hisar-125004
  • RAJ SINGH Department of Agronomy, College of Agriculture, CCS Haryana Agricultural University, Hisar-125004
  • A.K.DHAKA Department of Agronomy, College of Agriculture, CCS Haryana Agricultural University, Hisar-125004

DOI:

https://doi.org/10.54386/jam.v18i2.936

Keywords:

Indian mustard, sowing dates, nitrogen levels, thermal unit, yield attributes

Abstract

Field experiment was conducted during rabi 2013-14 and 2014-15 to study the thermal requirement for Indian mustard at research farm, College of Agriculture, Hisar,Haryana (latitude 290 10’ N and longitude 750 36’ E Latitude). The experiment was laid out in split plot design with three replications consisted four dates of sowing (Oct15th&25th and Nov5th& 15th) as main plots and five nitrogen levels(0 (Control), 40, 60, 80 and 100 kg N ha-1) as sub plots treatments. Results revealed that duration of phenological stages and
thermal unit during days to 50 % flowering to maturity increased with successive delay in sowing. October 15 sowing crop produced significantly higher total dry matter accumulation, more number of siliquae, higher seed yield, and biological yield as compared to October 25, November 5 and November 15. Among the doses of nitrogen, 100 kg Nha-1 exhibited significantly higher total dry matter accumulation, heat use efficiency, more number of siliquae plant-1, higher 1000 seed weight , seed yield and biological yield followed by 80, 60, 40 and 0 kg N. 

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Published

01-12-2016

How to Cite

P.KEERTHI, R.K.PANNU, RAJ SINGH, & A.K.DHAKA. (2016). Thermal requirements, heat use efficiency and plant responses of Indian mustard (Brassica Juncea) for different levels of nitrogen under different environments. Journal of Agrometeorology, 18(2), 201–205. https://doi.org/10.54386/jam.v18i2.936

Issue

Vol. 18 No. 2 (2016): December

Section

Research Paper

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