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  • 赵利,王斌,苗红梅,等.胡麻种质资源籽粒形态与品质性状变异及其相关性研究[J].植物遗传资源学报,2020,21(1):243-251.    [点击复制]
  • ZHAO Li,WANG Bin,MIAO Hong-mei,et al.Variation and Correlation Analysis on Seed Morphology and Quality Traits of Oil Flax Germplasm Resources[J].植物遗传资源学报,2020,21(1):243-251.   [点击复制]
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胡麻种质资源籽粒形态与品质性状变异及其相关性研究
赵利1, 王斌1, 苗红梅2, 马琴2
0
(1 甘肃省农业科学院作物研究所,兰州 730070;2 河南省农业科学院芝麻研究中心,郑州 450008)
摘要:
为了通过籽粒形态来预测籽粒品质情况,本研究测定了 238 份胡麻资源的 8 个籽粒形态指标和 7 个品质性状,探索了它们间的关系。结果表明:资源中籽粒黄度、表面积、千粒重和木酚素含量变异较大,籽粒周长、含油率、棕榈酸和亚麻酸含量变异较小。中国育成品种的平均籽粒亮度、亚油酸和木酚素含量最大,地方品种的平均籽粒红度、黄度、棕榈酸、硬脂酸和油酸含量最大;国外品种的平均籽粒长度、宽度、周长、表面积、千粒重、含油率和亚麻酸含量均最大。黄粒资源的籽粒亮度、黄度、棕榈酸、硬脂酸、亚麻酸、木酚素含量和含油率均比棕粒资源的大。籽粒长度、宽度、周长和表面积的增加有利于千粒重的提高;籽粒越大,红度越低,含油率就越高。籽粒越长、越饱满、亮度和黄度越大,其棕榈酸含量越高;籽粒越大越饱满,黄度越低,油酸含量越高;籽粒短小、干瘪的胡麻亚油酸和木酚素含量越高;籽粒越大,黄度越高的品种亚麻酸含量越高。因此,可通过对胡麻籽粒形状和种皮颜色的选择实现对胡麻品质性状的间接选择,为胡麻品质育种提供理论依据。
关键词:  胡麻  籽粒形态  品质性状  相关性
DOI:10.13430/j.cnki.jpgr.20191107001
投稿时间:2019-11-07修订日期:2019-11-27
基金项目:国家自然基金项目(31760397);现代农业产业技术体系(CARS-14-03)
Variation and Correlation Analysis on Seed Morphology and Quality Traits of Oil Flax Germplasm Resources
ZHAO Li1, WANG Bin1, MIAO Hong-mei2, MA Qin2
(1 Crop Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou 730070;2 Sesame Research Center, Henan Academy of Agricultural Sciences,Zhengzhou 450008)
Abstract:
In order to predict the seed quality of oil flax through seed morphology-related traits,eight seedmorphology characteristics and seven seed-quality traits were detected in 238 oil flax germplasm accessions. The results showed higher variation coefficient on yellowness,seed surface area,1000-seed weight and lignan content,as well as lower variation coefficient on the seed circumference,oil content,palmitic acid and linolenic acid content. The highest average values on traits of seed lightness,linoleic acid and lignan contents were observed in improved cultivars,and the highest average values on traits of seed redness and yellowness,palmitic acid,stearic acid and oleic acid contents were detected in landrace cultivars. The exotic cultivars showed the highest average values on seed length,width,circumference,surface area,1000-seed weight,oil content and linolenic acid content. Regarding to the seeds of accessions with different color,the lightness,yellowness,palmitic acid,stearic acid,linolenic acid,lignan content and oil content of the yellow seeds were higher than those of the brown seeds. The seed length,width,circumference and surface area were positively correlated with and contributed to the thousand-seed weight. The accessions with bigger seeds and lower redness was briefly associated with a higher oil content. The longer,fuller,lighter and yellow seeds showed a higher palmitate content,while the bigger,fuller seeds with non-visible yellowness were associated with the higher oleic acid content. The higher contents of linoleic acid and lignan were observed in short,small and shriveled seeds. The bigger and yellow seeds were found with a higher content of linolenic acid. Therefore,this study revealed the correlation of flax-quality traits with seed morphological characteristics,which can provide theoretical basis in quality breeding of flax via selecting the morphological traits.
Key words:  oil flax  seed morphological  quality traits  correlation

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