Legume Research - An International Journal
Web of Science
  • Year: 2022
  • Volume: 45
  • Issue: 6

Role of potassium on growth, nitrogen fixation and biochemical traits in [Vigna radiata (L.) wilczek] under water stress

  • Author:
  • Nisha Kataria*, Narender Singh
  • Total Page Count: 8
  • Page Number: 719 to 726

Department of Botany, Kurukshetra University, Kurukshetra-136 119, Haryana, India

*Corresponding Author: Nisha Kataria, Department of Botany, Kurukshetra University, Kurukshetra-136 119, Haryana, India. Email: katarianisha1034@gmail.com

Online published on 15 July, 2022.

Abstract

Water stress is a global issue to ensure survival of agricultural crops. Mungbean has a great nutritional value, short-duration and has an advantage that it can grow in wide range of soils and environments. For the present study, two varieties of mungbean were selected and raised in earthen pots.

Water stress was imposed at 50% flowering (35–40 days after sowing) and plants were sampled at this stage. The control plants maintained at soil moisture content (SMC) of 12.0±0.5% and in stressed plants, water stress was created by withholding irrigation till SMC decreased to 4.5±0.5%. In legumes, damaging effects of drought can be reduced by potassium supply. Potassium was supplied to the soil at concentration 0.00, 1.54 mM, 2.31 mM, 3.08 mM.

This article includes water stress-induced harmful effects on mungbean growth and development, nitrogen fixation and biochemical traits and suggests that different concentrations of potassium fertilizer help to reduce the negative effect of water stress.

Keywords

Chlorophyll, Mungbean, Nitrogenase activity, Nitrate reductase activity, Potassium, Proline, Water stress