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园艺学报 ›› 2015, Vol. 42 ›› Issue (9): 1807-1814.doi: 10.16420/j.issn.0513-353x.2015-0293

• 研究报告 • 上一篇    下一篇

四川牡丹部分野生居群种子脂肪酸组分比较

杨 勇1,刘佳坤2,*,曾秀丽3,吴 云2,宋会兴2,刘光立2,**   

  1. 1四川农业大学玉米研究所,农业部西南玉米生物学与遗传育种重点实验室,成都 611130;2四川农业大学风景园林学院,成都 611130;3西藏自治区农牧科学院蔬菜研究所,拉萨 850030
  • 出版日期:2015-09-25 发布日期:2015-09-25
  • 基金资助:
    四川省教育厅重点课题(201ZA0009)

A Comparative Study on Composition of Seed Oil Fatty Acids of Some Wild Populations of Paeonia decomposita

YANG Yong1,LIU Jia-kun2,*,ZENG Xiu-li3,WU Yun2,SONG Hui-xing2,and LIU Guang-li2,**   

  1. 1Maize Research Institute of Sichuan Agricultural University,Key Laboratory of Maize Biology and Genetic Breeding on Southwest,Ministry of Agriculture,Chengdu 611130,China;2School of Landscape Architecture of Sichuan Agricultural University,Chengdu 611130,China;3Institute of Vegetables,Tibet Academy of Agricultural and Animal Husbandry Sciences,Lhasa 850032,China
  • Online:2015-09-25 Published:2015-09-25

摘要: 四川牡丹(Paeonia decomposita Hand.-Mazz.)结实量大,专性种子繁殖,具油用开发潜力。对7个不同野生居群的四川牡丹种子千粒质量、种仁出油率、籽油中脂肪酸组成及相对含量进行了测定,并探讨其与土壤因子的相关性。结果表明:四川牡丹不同居群种子千粒质量平均为(311.65 ± 46.45)g,平均种仁出油率32.23% ± 1.96%,居群间差异显著(P < 0.05);籽油中共检测到7种主要脂肪酸:棕榈酸、十七烷酸、硬脂酸、油酸、亚油酸、亚麻酸和花生一烯酸,其中不饱和脂肪酸相对含量高达91.94% ~ 93.70%,亚麻酸相对含量高达40.45% ~ 47.68%,不同居群籽油脂肪酸组分相对含量存在差异;土壤有效钾含量与种子出油率呈显著负相关(P < 0.05),土壤有机质、全氮含量与亚油酸含量呈显著负相关(P < 0.05),其他脂肪酸组分与土壤因子相关性不显著。

关键词: 四川牡丹, 野生居群, 牡丹籽油, 脂肪酸组分, 不饱和脂肪酸

Abstract: Paeonia decomposita is potentially usable for developing oilseed peony,because of its large seed yield and obligate seed reproduction. We studied the 1 000-seed weight,kernel oil yield,composition and relative content of fatty acids in 7 wild populations,and measured their correlations with soil factors. The results showed that:Mean 1 000-seed weight was(311.65 ± 46.45)g;Mean kernel oil yield was 32.23% ± 1.96%,differences were significant among populations. Seven fatty acids were detected,including i.e. palmitic acid,heptadecanoic acid,stearic acid,oleic acid,linloeic acid,linolenic acid and cis-8-eicosenoic acid;Unsaturated fatty acids accounted for 91.94%–93.70%,the relative were different among populations. Soil available potassium content had significant negative correlation with oil yield;Both soil organic matter and total nitrogen content had negative correlation with linloeicacid content. There was no significant correlation between soil factors and other oil constituents.

Key words: Paeonia decomposita, wild population, peony seed oil, composition of fatty acids, unsaturated fatty acids

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