Genetic variability for key physiological traits in groundnut under managed drought condition


Abstract views: 26 / PDF downloads: 3

Genetic variability for key physiological traits in groundnut under managed drought condition

Authors

  • B N HARISH BABU Zonal Agricultural and Horticultural Research Station, Hiriyur
  • G CHANDRASHEKHARA Zonal Agricultural and Horticultural Research Station, Hiriyur
  • S K PATTANASHETTI Zonal Agricultural and Horticultural Research Station, Hiriyur

https://doi.org/10.56739/jor.v37iSpecialissue.139517

Keywords:

Drought, Groundnut, Physiological traits, MSI, RWC, SCMR

Abstract

Drought is a major production constraint in rainfed groundnut. In the present study, genetic variability for relative water content (RWC) of leaf, membrane stability index (MSI), SPAD chlorophyll meter readings (SCMR) and percent wilted plants was assessed in 40 advanced breeding lines of groundnut under managed drought condition. Significant differences were noticed for key physiological traits. The RWC of leaf, MSI and percentage of wilted plants under drought showed high GCV, PCV, heritability coupled with high genetic advance over mean. The SCMR showed lower GCV and PCV but exhibited high heritability with moderate genetic advance over mean indicating the possibility to improve this trait by proper selection methods.

Downloads

Download data is not yet available.

References

John K P, Raghava Reddy P, Hariprasad Reddy P, Sudhakar and Eswar Reddy N P 2012. Genetic parameters for

morphological, physiological and yield attributes related to moisture stress tolerance in groundnut - a review.

Agriculture Review, 33(2): 104-113.

Nigam S N, Chandra S, Srievi K R, Manohar B, Reddy A G S, Nageswara R R, Wright G C, Reddy P V, Deshmukh M P, Mathur R K, Basu M S, Vasundhara S, Varman P V and Nagda A K 2008. Efficiency of physiological trait-based and empirical selection approaches for drought tolerance in groundnut. Annals of Applied Biology, 146: 433-439.

Downloads

Submitted

2023-07-20

Published

2020-03-12

How to Cite

B N HARISH BABU, G CHANDRASHEKHARA, & S K PATTANASHETTI. (2020). Genetic variability for key physiological traits in groundnut under managed drought condition: Genetic variability for key physiological traits in groundnut under managed drought condition. Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.139517