Rapid identification and preliminary evaluation of quality characters of oilseed sunflower by near infrared spectroscopy  

作　　者：Ling Wang Lei Wang Meilian Tan Haifeng Yu Jiaomei Wang Yuxiao Li Wei Wang Xingchu Yan Lijun Wang 

机构地区：[1]Oil Crops Research Institute of Chinese Academy of Agricultural Sciences,Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,Wuhan,430062,China [2]Inner Mongolian Academy of Agricultural and Animal Husbandry Sciences,Huhhot,010031,China

出　　处：《Oil Crop Science》2022年第3期142-148,共7页中国油料作物学报(英文版）

基　　金：the Project of“Accurate Identification of Sunflower Germplasm Resources(19221985)”;the earmarked fund of“CARS—Specific Oilseed Crops(CARS-14)”;the Project of“Exploration,Identification and Innovative Utilization of Excellent Germplasm Resources of Oil Crops(CAAS-OCRI-ZDRW-202101)”;the Project of“Oil Crop Germplasm Resource Protection(19221888-4)”;the Project of“National Science and Technology Resource Sharing Service Platform(NCGRC-2022-Special Oil Crop)”。

摘　　要：To clarify the quality characters,understand the genetic diversity and screen elite lines among different oilseed sunflowers,the contents of crude fat,oleic acid,linoleic acid,palmitic acid and stearic acid of 525 oil sunflowers(including 375 germplasm accessions and 150 inbred lines)were detected by near-infrared spectroscopy(NIRS);the genetic variation and correlation analysis of quality traits were also performed.The results showed that oleic acid and linoleic acid had rich diversities with large variation ranges for each material type.Similar to the relation between crude fat content and palmitic acid content,significantly negative relation with high estimated value existed between oleic acid and linoleic acid content,while stearic acid content positively associated with oleic acid and palmitic acid content.Principal component analysis indicated that 5 quality traits were integrated into 2principal component factors(linoleic acid negative factor and palmitic acid factor)with the contribution rate of 88.191%,which could be used for evaluating sunflower quality.525 oilseed sunflowers were clustered into 3groups with obvious differences of quality characters,materials in Group I had high contents of oleic acid and low crude fat,but the opposite was found in GroupⅢ.59 superior quality accessions were obtained using large-scale and rapid near-infrared spectroscopy,and these excellent materials were verified by the traditional national chemical standard method.This research provided materials and significant reference for sunflower genetic research and quality breeding.

关 键 词：SUNFLOWER Germplasm resources Husked seed Oil content Fatty acid composition Near infrared spectroscopy 

分 类 号：S565.5[农业科学—作物学]