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水分胁迫改变小麦基因型的生理、光谱和农艺指标。

Water Stress Alters Physiological, Spectral, and Agronomic Indexes of Wheat Genotypes.

作者信息

Tavares Cássio Jardim, Ribeiro Junior Walter Quadros, Ramos Maria Lucrécia Gerosa, Pereira Lucas Felisberto, Muller Onno, Casari Raphael Augusto das Chagas Noqueli, de Sousa Carlos Antonio Ferreira, da Silva Anderson Rodrigo

机构信息

Federal Institute Goiano, Campus Cristalina (IF Goiano), Cristalina 73850-000, GO, Brazil.

Brazilian Agricultural Research Corporation-(EMBRAPA Cerrados), Planaltina 73310-970, DF, Brazil.

出版信息

Plants (Basel). 2023 Oct 14;12(20):3571. doi: 10.3390/plants12203571.

DOI:10.3390/plants12203571
PMID:37896034
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10609785/
Abstract

Selecting drought-tolerant and more water-efficient wheat genotypes is a research priority, specifically in regions with irregular rainfall or areas where climate change is expected to result in reduced water availability. The objective of this work was to use high-throughput measurements with morphophysiological traits to characterize wheat genotypes in relation to water stress. Field experiments were conducted from May to September 2018 and 2019, using a sprinkler bar irrigation system to control water availability to eighteen wheat genotypes: BRS 254; BRS 264; CPAC 01019; CPAC 01047; CPAC 07258; CPAC 08318; CPAC 9110; BRS 394 (irrigated biotypes), and Aliança; BR 18_Terena; BRS 404; MGS Brilhante; PF 020037; PF 020062; PF 120337; PF 100368; PF 080492; and TBIO Sintonia (rainfed biotypes). The water regimes varied from 22 to 100% of the crop evapotranspiration replacement. Water stress negatively affected gas exchange, vegetation indices, and grain yield. High throughput variables TCARI, NDVI, OSAVI, SAVI, PRI, NDRE, and GNDVI had higher yield and morphophysiological measurement correlations. The drought resistance index indicated that genotypes Aliança, BRS 254, BRS 404, CPAC 01019, PF 020062, and PF 080492 were more drought tolerant.

摘要

选择耐旱且水分利用效率更高的小麦基因型是一项研究重点，特别是在降雨不规则的地区或预计气候变化将导致可用水量减少的地区。这项工作的目的是利用形态生理性状的高通量测量来表征与水分胁迫相关的小麦基因型。于2018年5月至9月以及2019年进行了田间试验，使用喷灌杆灌溉系统来控制18个小麦基因型的水分供应：BRS 254；BRS 264；CPAC 01019；CPAC 01047；CPAC 07258；CPAC 08318；CPAC 9110；BRS 394（灌溉生物型），以及阿里亚娜；BR 18_Terena；BRS 404；MGS Brilhante；PF 020037；PF 020062；PF 120337；PF 100368；PF 080492；和TBIO Sintonia（雨养生物型）。水分状况在作物蒸发散替代量的22%至100%之间变化。水分胁迫对气体交换、植被指数和籽粒产量产生了负面影响。高通量变量TCARI、NDVI、OSAVI、SAVI、PRI、NDRE和GNDVI与产量和形态生理测量的相关性更高。抗旱指数表明，阿里亚娜、BRS 254、BRS 404、CPAC 01019、PF 020062和PF 080492基因型更耐旱。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/e491185355cc/plants-12-03571-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/a74e1f3db000/plants-12-03571-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/4b87479c8822/plants-12-03571-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/2627d98bd32a/plants-12-03571-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/e9f28474c36a/plants-12-03571-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/4b588adf9f4d/plants-12-03571-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/e491185355cc/plants-12-03571-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/a74e1f3db000/plants-12-03571-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/4b87479c8822/plants-12-03571-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/2627d98bd32a/plants-12-03571-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/e9f28474c36a/plants-12-03571-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/4b588adf9f4d/plants-12-03571-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/899f/10609785/e491185355cc/plants-12-03571-g006.jpg

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