Evaluation of groundnut (Arachis hypogaea L.) advanced breeding lines under mid-season drought stress conditions for root traits


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Evaluation of groundnut (Arachis hypogaea L.) advanced breeding lines under mid-season drought stress conditions for root traits

Authors

  • P LATHA Regional Agricultural Research Station, ANGRAU, Tirupati, Andhra Pradesh
  • T ANITHA Regional Agricultural Research Station, ANGRAU, Tirupati, Andhra Pradesh
  • A R NIRMAL KUMAR Regional Agricultural Research Station, ANGRAU, Tirupati, Andhra Pradesh
  • P SUDHAKAR Regional Agricultural Research Station, ANGRAU, Tirupati, Andhra Pradesh
  • R P VASANTHI Regional Agricultural Research Station, ANGRAU, Tirupati, Andhra Pradesh
  • K JOHN Regional Agricultural Research Station, ANGRAU, Tirupati, Andhra Pradesh

https://doi.org/10.56739/jor.v37iSpecialissue.139863

Keywords:

Groundnut, Drought stress, Root traits

Abstract

Investigation was carried out to study genotypic variability for root morphological traits among 50 advanced breeding lines of groundnut including two drought tolerant varieties (K-9 and Dharani) under both control and midseason drought stress conditions. Drought stress decreased the root length (RL), shoot length (SL), root dry weight (RDW), shoot dry weight (SDW), number of lateral roots (NLR) and root shoot ratio (RSR). Significant genotypic ranges with respect to RL, SL, RDW, SDW and NLR were 6.0-112.4, 3.9- 22.2, 0.63-2.17, 0.20-10.76 and 6.0-35.0 respectively.

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References

Jongrungklang N, Toomsan B, Vorasoot N, Jogloy S, Boote K J, Hoogenboom G T and Patanothai A 2012. Classification of root distribution patterns and their contributions to yield in peanut genotypes under midseason drought stress. Field Crops Res., 127: 181-190.

Pandey P K, Herrera W A T, Villegas A N, Pendleton J W 1984. Drought response of grain legumes under irrigation gradient: III. Plant growth. Agronomy J., 76: 557-560.

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Submitted

2023-07-27

Published

2020-03-12

How to Cite

P LATHA, T ANITHA, A R NIRMAL KUMAR, P SUDHAKAR, R P VASANTHI, & K JOHN. (2020). Evaluation of groundnut (Arachis hypogaea L.) advanced breeding lines under mid-season drought stress conditions for root traits: Evaluation of groundnut (Arachis hypogaea L.) advanced breeding lines under mid-season drought stress conditions for root traits. Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.139863