摘要
本研究以通辽市农业科学研究院育成的10个矮秆Lm型标记雌性系和9个矮秆恢复系,采用NCII交配设计配制90个矮秆蓖麻杂交组合,对F1组合及亲本的籽粒大小、品质性状进行了相关、通径及回归分析.结果表明,籽仁含油率与籽粒容重、籽粒百粒重、籽仁百粒重、籽粒出仁率呈显著或极显著正相关;籽粒出仁率、籽粒含油率、籽仁含油率与硬脂酸、油酸呈极显著正相关,与亚油酸、亚麻酸呈显著或极显著负相关;蓖麻油酸的相对含量与棕榈酸、硬脂酸、油酸、亚油酸、亚麻酸、花生酸、花生一烯酸、山嵛酸的相对含量呈极显著负相关;蓖麻籽粒性状、品质性状对籽粒含油率的直接贡献大小依次为:籽粒出仁率>籽粒百粒重>籽粒三轴(长度、宽度、厚度)乘积>籽粒体积>籽粒厚>籽粒容重>籽粒长>籽粒宽>籽仁百粒重;通过回归分析,得出籽粒宽、籽粒三轴乘积、籽粒百粒重、籽粒出仁率4个性状与籽粒含油率的回归方程,为蓖麻品质育种提供理论依据.
Correlation path and regression analysis on dwarf castor hybrid grain size and quality traits of parents and their F1 combinations were determined.Hybrids studied included 10 dwarf Lm type marker female and 9 dwarf restorer line bred by the Academy of Agricultural Sciences of Tongliao and the 90 dwarf castor hybrid combination made up of NCII mat design.The results show that kernel oil content is significantly or very significantly positively correlated with grain bulk density,100-grain weight,kernel yield ratio and seed and 100-kernel weight.Kernel yields ratio,kernel and grain oil content are very significantly positively correlated with stearic acid and oleic acid,and significantly or very significantly negatively correlated with linoleic acid and linolenic acid.The relative content of ricinoleic acid was significantly negatively correlated with the relative contents of palmitic,stearic,oleic,linoleic,linolenic,arachidic,arachidonic and behenic acids.The direct contributions to castor grain and quality traits to grain oil content are as follows:Kernel yield ratio>100-grain weight>three axis of grain product(length,width,thickness)>grain size>grain thickness>grain bulk density>grain length>grain width>seed and 100-kernel weight.Through regression analysis,the regression equation of grain width,grain three axis product,100-grain weight and kernel rate of 4 characters and kernel oil content was obtained,which provides a theoretical basis of the quality of castor quality breeding.
作者
朱雪倩
何智彪
乔文杰
贾娟霞
莫德乐吐
刘伟
李卓然
杨恒山
ZHU Xue-qian;HE Zhi-biao;QIAO Wen-jie;JIA Juan-xia;Modeletu;LIU Wei;LI Zhuo-ran;YANG Heng-shan(College of Agriculture,Inner Mongolia University for Nationalities,Tongliao 028043,China;Academy of Agricultural Sciences of Tongliao City,Tongliao 028015,China;Livestock Breeding Guidance Station of Tongliao City,Tongliao 028000,China;Economic Crop Station of Tongliao City,Tongliao 028000,China)
出处
《内蒙古民族大学学报(自然科学版)》
2019年第1期55-61,共7页
Journal of Inner Mongolia Minzu University:Natural Sciences
基金
国家公益性行业(农业)科研专项<蓖麻产业技术研究与试验示范>项目(201003057)
内蒙古自治区"草原英才"工程滚动支持<蓖麻杂优利用研究创新人才团队>(2016年度)项目
内蒙古自治区高校蓖麻产业工程技术研究中心
内蒙古自治区蓖麻育种重点实验室开放基金项目(MDK2018019)
关键词
矮秆蓖麻
籽粒性状
品质性状
相关分析
回归分析
Dwarf castor
Grain character
Quality characters
Correlation analysis
Regression analysis