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    Rights statement: This is the peer reviewed version of the following article: Thangthong, N, Jogloy, S, Jongrungklang, N, Kvien, CK, Dodd, IC, Vorasoot, N. Changes in root xylem anatomy of peanut genotypes with different drought resistance levels under early-season drought. J Agro Crop Sci. 2021; 207: 803– 813. https://doi.org/10.1111/jac.12492 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/jac.12492 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

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Changes in root xylem anatomy of peanut genotypes with different drought resistance levels under early-season drought

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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  • N. Thangthong
  • S. Jogloy
  • N. Jongrungklang
  • C.K. Kvien
  • I.C. Dodd
  • N. Vorasoot
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<mark>Journal publication date</mark>31/10/2021
<mark>Journal</mark>Journal of Agronomy and Crop Science
Issue number5
Volume205
Number of pages11
Pages (from-to)803-813
Publication StatusPublished
Early online date27/04/21
<mark>Original language</mark>English

Abstract

During the 2014 and 2015 seasons, peanut root anatomy studies were conducted under well-watered and under drought conditions using three peanut genotypes which are known to differ in their physiological responses to early- and mid-season drought (ICGV 98,305, ICGV 98,324 and Tifton-8). Cross sections of the newly formed roots revealed that the average vessel diameter and total vessel area in the first-order roots were significantly reduced under drought in ICGV 98,305 and ICGV 98,324, yet not in Tifton-8, which had the smallest vessel diameters and total area in both well-watered and drought treatments. The xylem vessel structure in newly formed roots of ICGV 98,324 was very responsive to changes in soil moisture content. This adaptive capacity of ICGV 98,324 to change xylem structure as soil moisture conditions change may provide plant breeders an important trait which will lead to better water-use efficiencies in both moist and drought conditions.

Bibliographic note

This is the peer reviewed version of the following article: Thangthong, N, Jogloy, S, Jongrungklang, N, Kvien, CK, Dodd, IC, Vorasoot, N. Changes in root xylem anatomy of peanut genotypes with different drought resistance levels under early-season drought. J Agro Crop Sci. 2021; 207: 803– 813. https://doi.org/10.1111/jac.12492 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/jac.12492 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.