Current Advances in Agricultural Sciences(An International Journal)
  • Year: 2023
  • Volume: 15
  • Issue: 1

Studies on efficacy of dormancy duration and dormancy breaking methods in rice (Oryza sativa L.) genotypes

  • Author:
  • Harshit Gupta1,*, C.L. Maurya1, Singh Rishabh Kumar1, Anubhav Kumar1, Bal Veer Singh2, Shakti Singh3
  • Total Page Count: 4
  • Published Online: Aug 18, 2023
  • Page Number: 89 to 92

1Department of Seed Science and Technology, C.S. Azad University of Agriculture and Technology, Kanpur-208 020 (Uttar Pradesh), India

2Department of Agronomy, C.S. Azad University of Agriculture and Technology, Kanpur-208 020 (Uttar Pradesh), India

3Department of Biochemistry, C.S. Azad University of Agriculture and Technology, Kanpur-208 020 (Uttar Pradesh), India

*Harshit Gupta (Corresponding author) harshitguptaagro380@gmail.com

Online published on 18 August, 2023.

Abstract

The present investigation was carried out to study of dormancy duration and dormancy breaking methods in rice genotypes. The experiment was laid out with 32 genotypes and three check variety were comprise in randomized block design with three replication during kharif 2019. The seeds were treated with physical and chemicals methods such as control, water soaked, Gibberellic acid (GA3), potassium nitrate (KNO3), nitric acid (HNO3), and hydrogen peroxide (H2O2) for breaking seed dormancy. HNO3 @ 1.5% recorded maximum mean germination of 80% compared to 53.25% in the control at P=0.01 level of significance. GA3 @ 100 ppm also performed significantly better than the rest of the chemicals and the control in breaking the dormancy.

Keywords

Dormancy breaking, Germination Mechanism, Oryza sativa, Rice