甘肃省实生核桃单株数量性状的概率分级  

Probability Grading of Individual Quantitative Traits of Sexual Walnut Seedling in Gansu Province

作　　者：雒宏佳 田果 郭小梅 张兴莹 刘洋辛 李建红 LUO Hongjia;TIAN Guo;GUO Xiaomei;ZHANG Xingying;LIU Yangxin;LI Jianhong(Forestry Technique Extension Station of Gansu Province,Lanzhou Gansu 730046;Lizi Forest Farm,Xiaolongshan Forestry Protection Center of Gansu Province,Tianshui Gansu 741000)

机构地区：[1]甘肃省林业科技推广站,甘肃兰州730046 [2]甘肃省小陇山林业保护中心李子林场,甘肃天水741000

出　　处：《现代农业科技》2024年第19期50-54,共5页Modern Agricultural Science and Technology

摘　　要：为了有效评价和利用核桃种质资源,以甘肃省85份农家品种核桃坚果为研究对象,对20个数量性状进行测定,分析各性状的变异系数,并对这20个数量性状进行K-S检验和分级。结果表明:甘肃省实生核桃居群坚果性状变异系数为8.56%~27.32%,平均为15.53%,说明甘肃省核桃坚果主要数量性状的变异较大,遗传多样性丰富。油酸含量、仁重、锌含量、单果重、壳厚等指标的变异系数较高,分别为27.32%、26.35%、24.96%、23.50%、22.80%,品种选育中宜将这几个数量性状作为主要参考指标。K-S检验结果表明,1-5级出现的频率分别为10%、20%、40%、20%、10%,符合正态分布。核仁不饱和脂肪酸含量稳定,多不饱和脂肪酸含量高于大豆油、玉米胚芽油和芝麻油。In order to effectively evaluate and utilize walnut germplasm resources,85 walnut nuts in Gansu Province were selected as the research objects.20 quantitative traits were measured,and the coefficient of variation of each trait was analyzed.K-S test and grading were performed on these 20 quantitative traits.The results showed that the coefficient of variation of walnut traits in the sexual walnut population of Gansu Province ranged from 8.56%to 27.32%,with an average of 15.53%.This indicated that there was significant variation in the main quantitative traits of walnut nuts in Gansu Province,and the genetic diversity was abundant.The coefficient of variation for indicators such as oleic acid content,kernel weight,zinc content,single fruit weight and shell thickness was relatively high,which reached 27.32%,26.35%,24.96%,23.50%and 22.80%,respectively.These quantitative traits should be used as the main reference indicators in variety breeding.The K-S test results indicated that the occurrence frequencies of grades 1-5 were 10%,20%,40%,20%and 10%,respectively,which followed a normal distribution.The content of unsaturated fatty acids in the nucleolus was stable,and the content of polyunsaturated fatty acids was higher than that of soybean oil,corn germ oil and sesame oil.

关 键 词：实生核桃 数量性状 概率分级 甘肃省 

分 类 号：S664.1[农业科学—果树学]