Genetic variation of stem characters in wheat and their relation to physiological characters and yield under drought

  • Sonia K. Chrungoo Department of Botany and Plant Physiology, CCS Haryana Agricultural University, Hisar 125 004
  • Renu Munja Department of Botany and Plant Physiology, CCS Haryana Agricultural University, Hisar 125 004
  • Pooja Department of Botany and Plant Physiology, CCS Haryana Agricultural University, Hisar 125 004
  • Suresh Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar 125 004
Keywords: Drought tolerance, fructan, stem solidness, water soluble sugars.

Abstract

Stem characters such as stem solidness and stem carbohydrates (water soluble carbohydrates and nonstructural carbohydrates estimated as fructan) play an important role in stabilizing grain yield in stressful environments. Ten wheat genotypes were screened for carbohydrate content (Water soluble sugars and fructan) in peduncle along with other stem parameters namely, stem solidness, grain growth rate and stem osmotic potential under irrigated and drought conditions. Data was analyzed for correlation among these parameters along with biomass and yield. The results of present study indicated that stresstolerant genotype, RIL-S1-38 and WH 1235 accumulated higher fructan content in stem and contributed in grain growth rate, reduced osmotic potential and further imparted drought tolerance. Clear differences in stem solidness and fructan content exhibited lesser grain yield reduction under drought condition.
Published
2020-12-25
Issue
Vol 80 No 04 (2020): Indian Journal of Genetics and Plant Breeding
Section
Research Article

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