干旱区生态环境知识资源中心(Arid): Spectral Reflectance Indices and Physiological Parameters in Quinoa under Contrasting Irrigation Regimes

Arid

DOI	10.2135/cropsci2018.11.0711
	Spectral Reflectance Indices and Physiological Parameters in Quinoa under Contrasting Irrigation Regimes
	Hinojosa, Leonardo 1; Kumar, Neeraj 1,2; Gill, Kulvinder S.1; Murphy, Kevin M.1
通讯作者	Murphy, Kevin M.
来源期刊	CROP SCIENCE
ISSN	0011-183X
EISSN	1435-0653
出版年	2019
卷号	59 期号:5 页码:1927-1944
英文摘要	High temperatures, coupled with arid environments, are a major constraint to quinoa (Chenopodium quinoa Willd.) production. Here, we tested the effectiveness of multiple phenotypic and physiological parameters useful in the selection of heat-tolerant quinoa genotypes. Initially, we screened 112 quinoa genotypes for leaf greenness index under high-temperature greenhouse conditions. Of these, eight genotypes were selected for field evaluations under irrigated and rainfed treatments in two locations over two growing seasons (2016-2017) in Washington State. Of these eight, four genotypes were selected as potentially heat tolerant (QQ74, Baer, BGQ 352, and Pison), and four were selected as heat-susceptible (17 GR, La Molina, 3 UISE, and Japanese Strain). Spectral reflectance indices including normalized difference vegetation index (NDVI) and green NDVI, as well as multiple physiological parameters, such as stomatal conductance, leaf temperature, and area under soil plant analysis development (SPAD) value decline curve (AUSDC), were evaluated. Results show variability in stomatal conductance among genotypes with 17 GR and BGQ 352 having the highest stomatal conductance and QQ74 the lowest. Baer, Pison, and QQ74 had the highest NDVI value across environments, and Japanese Strain had the lowest. Best linear unbiased prediction values in AUSDC showed that QQ74 had the highest leaf greenness and Japanese Strain had the lowest; these were classified as heat tolerant and heat susceptible, respectively. The NDVI is a potentially useful measure to predict grain yield in quinoa.
类型	Article
语种	英语
国家	USA
开放获取类型	Green Submitted, hybrid
收录类别	SCI-E
WOS记录号	WOS:000484542300009
WOS关键词	SALT-TOLERANCE MECHANISMS ; CHENOPODIUM-QUINOA ; PACIFIC-NORTHWEST ; CHLOROPHYLL FLUORESCENCE ; VEGETATION INDEXES ; LEAF CHLOROPHYLL ; WINTER-WHEAT ; YIELD ; WILLD. ; STABILITY
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214999
作者单位	1.Dept Crop & Soil Sci, Pullman, WA 99164 USA; 2.Clemson Univ, Adv Plant Technol Program, 105 Collings St, Clemson, SC 29634 USA
推荐引用方式 GB/T 7714	Hinojosa, Leonardo,Kumar, Neeraj,Gill, Kulvinder S.,et al. Spectral Reflectance Indices and Physiological Parameters in Quinoa under Contrasting Irrigation Regimes[J],2019,59(5):1927-1944.
APA	Hinojosa, Leonardo,Kumar, Neeraj,Gill, Kulvinder S.,&Murphy, Kevin M..(2019).Spectral Reflectance Indices and Physiological Parameters in Quinoa under Contrasting Irrigation Regimes.CROP SCIENCE,59(5),1927-1944.
MLA	Hinojosa, Leonardo,et al."Spectral Reflectance Indices and Physiological Parameters in Quinoa under Contrasting Irrigation Regimes".CROP SCIENCE 59.5(2019):1927-1944.