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Caiyun LIU, Francisco PINTO, C. Mariano COSSANI, Sivakumar SUKUMARAN, Matthew P. REYNOLDS
《农业科学与工程前沿(英文)》 2019年 第6卷 第3期 页码 296-308 doi: 10.15302/J-FASE-2019269
The application of spectral reflectance indices (SRIs) as proxies to screen for yield potential (YP) and heat stress (HS) is emerging in crop breeding programs. Thus, a comparison of SRIs and their associations with grain yield (GY) under YP and HS conditions is important. In this study, we assessed the usefulness of 27 SRIs for indirect selection for agronomic traits by evaluating an elite spring wheat association mapping initiative (WAMI) population comprising 287 elite lines under YP and HS conditions. Genetic and phenotypic analysis identified 11 and 9 SRIs in different developmental stages as efficient indirect selection indices for yield in YP and HS conditions, respectively. We identified enhanced vegetation index (EVI) as the common SRI associated with GY under YP at booting, heading and late heading stages, whereas photochemical reflectance index (PRI) and normalized difference vegetation index (NDVI) were the common SRIs under booting and heading stages in HS. Genome-wide association study (GWAS) using 18704 single nucleotide polymorphisms (SNPs) from Illumina iSelect 90K identified 280 and 43 marker-trait associations for efficient SRIs at different developmental stages under YP and HS, respectively. Common genomic regions for multiple SRIs were identified in 14 regions in 9 chromosomes: 1B (60–62 cM), 3A (15, 85–90, 101–105 cM), 3B (132–134 cM), 4A (47–51 cM), 4B (71–75 cM), 5A (43–49, 56–60, 89–93 cM), 5B (124–125 cM), 6A (80–85 cM), and 6B (57–59, 71 cM). Among them, SNPs in chromosome 5A (89–93 cM) and 6A (80–85 cM) were co-located for yield and yield related traits. Overall, this study highlights the utility of SRIs as proxies for GY under YP and HS. High heritability estimates and identification of marker-trait associations indicate that SRIs are useful tools for understanding the genetic basis of agronomic and physiological traits.
关键词: genome-wide association study (GWAS) heat tolerance spectral reflectance spring wheat
孙莉,苏根强,刘艳梅,赵闫闫,史刚荣
《中国工程科学》 2012年 第14卷 第3期 页码 70-75
采用盆栽试验,以玉米品种苏玉19为试材,在每次复水第7天同时测定不同处理植株的生物量、根冠比、叶绿素荧光、气体交换以及光谱特征等指标。结果表明,持续干旱处理抑制植株生长,增加根冠比,并通过气孔限制和非气孔限制因素抑制光合作用。持续干旱处理幼苗的mSR705、chlNDI和REP均显著小于对照,但对SIPI的影响不显著。多变低水环境下玉米幼苗生长明显受到抑制,但根冠比、叶绿素荧光、气体交换以及光谱特征等指标与正常供水没有差异。可见,生物量分配、光合作用和光谱特征的维持可能是玉米适应多变低水环境的重要生理机制。
Development and road performance of clear asphalt with high transparency and adhesion
《结构与土木工程前沿(英文)》 2023年 第17卷 第2期 页码 238-255 doi: 10.1007/s11709-022-0898-x
关键词: light-colored asphalt pavement orthogonal test road performance spectral reflectance silane-coupling agent
Synthesis and characterization of macromolecular surface modifier PP--PEG for polypropylene
CHEN Hanjia, SHI Xuhua, ZHU Yafei, ZHANG Yi, XU Jiarui
《化学科学与工程前沿(英文)》 2008年 第2卷 第1期 页码 102-108 doi: 10.1007/s11705-008-0018-z
关键词: polypropylene crystallization capacity attenuated hydrophilicity reflectance
Preparation and gaseous photocatalytic activity of smooth potassium dititanate film
QIAN Qinghua, HU Yuyan, WEN Gaofei, FENG Xin, LU Xiao-hua
《化学科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 308-314 doi: 10.1007/s11705-008-0047-7
关键词: reflectance UV-Visible photocurrent irradiation scanning calorimetry
标题 作者 时间 类型 操作
Spectral reflectance indices as proxies for yield potential and heat stress tolerance in spring wheat
Caiyun LIU, Francisco PINTO, C. Mariano COSSANI, Sivakumar SUKUMARAN, Matthew P. REYNOLDS
期刊论文
Synthesis and characterization of macromolecular surface modifier PP--PEG for polypropylene
CHEN Hanjia, SHI Xuhua, ZHU Yafei, ZHANG Yi, XU Jiarui
期刊论文