PMID- 36092403 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220913 IS - 1664-462X (Print) IS - 1664-462X (Electronic) IS - 1664-462X (Linking) VI - 13 DP - 2022 TI - Development and application of a relative soil water content - transpiration efficiency curve for screening high water use efficiency wheat cultivars. PG - 967210 LID - 10.3389/fpls.2022.967210 [doi] LID - 967210 AB - Improving water use efficiency (WUE) has been proven to be a prosperous way to produce more grain in drought-prone areas. Transpiration efficiency (TE) has been proposed as a criterion for screening cultivars with high WUE. This study quantifies the relations of TE to relative soil water content (RSWC) gradients using pot experiments and evaluates the capability of the relations of TE-RSWC on assessing the cultivar performance in field yield and WUE. Twelve winter wheat cultivars were grown at 6 RSWC, 12.1, 24.2, 36.3, 48.4, 60.5, and 72.6% of field capacity (FC = 24.8 g/g) for 33 days in tightly sealed pots preventing soil evaporation. The results showed that TE decreased power functionally following the increase in RSWC for all cultivars. The relationship could be described as TE = TE (FC) x (RSWC) (b) , named TE-RSWC curve. This curve could be divided into an orderly area where the rank of cultivars was stable when RSWC /= 72.6% and a disorderly area where the rank was unstable when 12.1% < RSWC < 72.6%. To assess the consistency of pot TE to field yield and WUE, the same 12 varieties were grown under rainfed and two irrigations (75 mm at the jointing and flowering stages, respectively). TE (FC) was found to be positively related to field yield and WUE independent of irrigation. TE measured near the wilting point was negatively related to field yield and WUE. These results indicated that TE (FC) could be used as a surrogate for screening high-yield and high-WUE cultivars. The consistency and inconsistency can be attributed to the orderly area and disorderly area of the TE-RSWC curves. CI - Copyright (c) 2022 Qiao, Li, Qiao, Li, Yang, Liu, Liu, Zhang and Dong. FAU - Qiao, Yunzhou AU - Qiao Y AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Li, Dongxiao AU - Li D AD - State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, China. FAU - Qiao, Wenjun AU - Qiao W AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Li, Yongpeng AU - Li Y AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Yang, Hong AU - Yang H AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Liu, Wenwen AU - Liu W AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Liu, Mengyu AU - Liu M AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Zhang, Xiying AU - Zhang X AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. FAU - Dong, Baodi AU - Dong B AD - Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Agricultural Water-Saving, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China. LA - eng PT - Journal Article DEP - 20220826 PL - Switzerland TA - Front Plant Sci JT - Frontiers in plant science JID - 101568200 PMC - PMC9459229 OTO - NOTNLM OT - TE-RSWC curve OT - power function OT - transpiration efficiency OT - water use efficiency OT - yield COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/09/13 06:00 MHDA- 2022/09/13 06:01 PMCR- 2022/01/01 CRDT- 2022/09/12 04:15 PHST- 2022/06/12 00:00 [received] PHST- 2022/07/31 00:00 [accepted] PHST- 2022/09/12 04:15 [entrez] PHST- 2022/09/13 06:00 [pubmed] PHST- 2022/09/13 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fpls.2022.967210 [doi] PST - epublish SO - Front Plant Sci. 2022 Aug 26;13:967210. doi: 10.3389/fpls.2022.967210. eCollection 2022.