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.
Accepted author manuscript, 2.54 MB, PDF document
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Changes in root xylem anatomy of peanut genotypes with different drought resistance levels under early-season drought
AU - Thangthong, N.
AU - Jogloy, S.
AU - Jongrungklang, N.
AU - Kvien, C.K.
AU - Dodd, I.C.
AU - Vorasoot, N.
N1 - 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.
PY - 2021/10/31
Y1 - 2021/10/31
N2 - 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.
AB - 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.
KW - Arachis hypogaea L.
KW - water stress
KW - xylem vessel area
KW - xylem vessel size
U2 - 10.1111/jac.12492
DO - 10.1111/jac.12492
M3 - Journal article
VL - 205
SP - 803
EP - 813
JO - Journal of Agronomy and Crop Science
JF - Journal of Agronomy and Crop Science
SN - 0931-2250
IS - 5
ER -