Indian Journal of Plant Physiology
  • Year: 2005
  • Volume: 10
  • Issue: 3

Growth rate of chickpea (Cicer Arietinum L.) genotypes under different planting dates

  • Author:
  • Tej Pal Singh1, P.S. Deshmukh1, G.C. Srivastava1, S.R. Kushwaha1, S.K. Mishra2
  • Total Page Count: 6
  • Page Number: 254 to 259

1Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi-110 012

2Division of Genetics, Indian Agricultural Research Institute, New Delhi-110 012

*Corresponding author

Abstract

High temperature is one of the important abiotic stresses limiting chickpea productivity. A field experiment was, therefore, conducted to study the effect of temperature on crop growth rate in six chickpea genotypes, viz., Pusa 256, Pusa 372, BGD 72 (released varieties) and DG 36, DG 46 and DG 51 (advance lines) grown under different planting dates. DG 36 showed higher leaf area index (LAI), crop growth rate (CGR) expressed on per day and per growing degree days (GDD), compared to other genotypes. Pusa 372 showed the lowest values of these traits. The minimum requirement of GDD was recorded in the genotype DG 36. In general, the advance lines under study required less accumulated heat units as compared to the released varieties.

Keywords

Accumulated heat units, chickpea, crop growth rate, GDD, leaf area index