Indian Journal of Plant Physiology

  • Year: 1994
  • Volume: 37o
  • Issue: 3

Physiological Basis of Yield and its Components in Rapeseed-Mustard with Reference to Photoperiod

  • Author:
  • Neelam Kumari, S.C. Bhargava, S.N. Bhardwaj
  • Total Page Count: 305
  • DOI:
  • Page Number: 142 to 446

Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi-110012

Abstract

In genus Brassica biomass as well as yield are influenced by the duration of photoperiod. Long photoperiod (LD) enhanced productivity in B. carinata (cv. BS-2B-84) whereas in B. campestris (cv. Pusa Kalyani) and B. juncea (cv. Varuna) it is favoured by natural day (ND). Short photoperiod (SD) decreased biomass and seed yield. Seed yield in general was found linearly related with biomass, days taken to flowering and number of pods on primary and secondary branches. Any change brought about in these parameters by photoperiods affects the productivity.