000			00595nab|a22002177a|4500
999			_c62730 _d62722
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003			MX-TxCIM
005			20201019145311.0
008			200423s2020||||xxk|||p|op||||00||0|eng|d
022			_a2045-2322
024	8		_ahttps://doi.org/10.1038/s41598-020-62170-0
040			_aMX-TxCIM
041			_aeng
100	0		_aYingying Sun _916490
245	1	0	_aRoot traits of dryland winter wheat (Triticum aestivum L.) from the 1940s to the 2010s in Shaanxi Province, China
260			_aLondon (United Kingdom) : _bNature Publishing Group, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aEight cultivars of winter wheat (Triticum aestivum L.) adapted to dryland conditions that have been historically planted in Shaanxi Province, China, were grown in plots with irrigation and drought treatments during the growing seasons of 2010–2012 to characterize the changes in root system traits and water use efficiency during the replacement of cultivars. The results showed that the overall root size of dryland wheat cultivars in Shaanxi Province changed with the planting decade. Modern cultivars developed after the 2000s had larger root surface areas than older cultivars under the drought treatment, especially at soil depths of 0–40 cm. However, the total water consumption throughout the stages showed no obvious changes among cultivars. The yield significantly increased with the planting decade, and the water use efficiency showed an average increase of 47.07% from the earliest to the most recent studied cultivar. Water stress promoted larger root sizes than those found in the irrigation treatment, especially at maturity. A trend toward a lower stress susceptibility index was observed over the decades, indicating that the sizes of modern cultivar roots increased less in the drought treatment than in the irrigation treatment. Both the roots and yields of the landrace cultivar from the 1940s showed low sensitivity to drought and better adjustment between the different water conditions. The study revealed that (1) modern wheat cultivars in Shaanxi Province possess higher water use efficiencies and decreased drought resilience and (2) the selection of ideal root traits should consider stable yields under different water conditions.
546			_aText in English
650		7	_2AGROVOC _92104 _aWinter wheat
650		7	_2AGROVOC _91277 _aStress
650		7	_2AGROVOC _91755 _aRoots
651		7	_2AGROVOC _93990 _aChina
700	0		_aSuiqi Zhang _915333
700	0		_aWei Chen _92613
773	0		_tNature Scientific Reports _gv. 10, art. 5328 _dLondon (United Kingdom) : Nature Publishing Group, 2020. _x2045-2322 _wa58025
856	4		_yClick here to access online _uhttps://doi.org/10.1038/s41598-020-62170-0
942			_cJA _n0 _2ddc