文献类型：期刊文献

中文题名：不同种源木姜叶柯种子生物学性状变异及质量特征研究

英文题名：Variation of biological traits and quality characteristics in Lithocarpus litseifolius seeds from different provenances

作者：杨志玲[1,2] 谭梓峰[1,2] 王依清[3,4]

第一作者：杨志玲

机构：[1]中国林业科学研究院亚热带林业研究所,杭州311400;[2]浙江省林木育种技术研究重点实验室,杭州311400;[3]湖南翱康生物科技有限公司,湖南溆浦419300;[4]湖南瑶荣工程技术研究中心,湖南溆浦419300

年份：2021

卷号：41

期号：12

起止页码：2024-2032

中文期刊名：广西植物

外文期刊名：Guihaia

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：国家基金面上项目(32071785);中央级公益性科研院所基本科研业务费专项资金(CAFYBB2019SY016);国家林业局科技发展中心项目(KJZXSA202038)。

语种：中文

中文关键词：木姜叶柯;生物学性状;质量特征;变异;相关性分析;聚类分析

外文关键词：Lithocarpus litseifolius;biological trait;quality characteristics;variation;correlation analysis;cluster analysis

分类号：Q944.59;S722.7

摘要：为探讨不同种源木姜叶柯种子生物学性状变异规律和质量特征,该文以8个省份10个种源为对象,测定了种子4个生物学性状、4个营养成分及3个质量性状数值,开展了11个种子特征参数的相关性及聚类分析。结果表明:(1)种子单粒重、种子长、种子数/种序、种序长均值依次为1.82 g、14.57 mm、16.43个、11.78 cm,不同种源种子4个生物学性状变异均达到极显著水平。(2)种子蛋白质、脂肪、还原糖和淀粉均值分别为4.75 g/100 g、0.97 g/100 g、1.13%、74.23 g/100 g,淀粉在4个营养成分指标中差异最小。(3)种子百粒重、含水率和生活力均值依次为172.92 g、42.05%、53.00%,不同种源种子3个质量性状差异较大。(4)种子4个生物学性状与淀粉、蛋白质分别正向、负向相关,种子长与脂肪及还原性总糖正相关。(5)种子生物学性状与生境因子相关性复杂,种序长与无霜期极显著相关,相关系数达到0.832,与海拔显著负相关,相关系数达到-0.698,随纬度递增种子品质略变差。(6)种子聚类为第Ⅰ类短种序高营养成分型,第Ⅱ类长种序高生活力型,第Ⅲ类种子繁多高淀粉型等3类,聚类不呈现地理效应。综上所述,不同种源种子生物学性状和质量变异丰富,说明不同种源在子代分化已有遗传基础,种源筛选还需结合田间试验。
In order to investigate variation of biological traits and quality characteristics in Lithocarpus litseifolius seeds,four biological traits,four nutrient contents and three quality characteristics were measured from ten provenances in eight provinces.The correlation and cluster analysis of eleven seed characteristic parameters were carried out.The results were as follows:(1)The mean values of single seed weight,seed length,seed numbers per panicle and panicle length were 1.82 g,14.57 mm,16.43 grain and 11.78 cm respectively,and variation of four biological traits of seeds from different provenances reached extremely significant level.(2)The average values of protein,fat,reducing sugar and starch of seed were 4.75 g/100 g,0.97 g/100 g,1.13%,74.23 g/100 g respectively.Starch had the smallest difference among four nutrient indexes.(3)The average values of hundred-grain weight,rate of water content and viability of seeds were 172.92 g,42.05%and 53.00%respectively.Three quality characteristics of seeds from different provenances varied greatly.(4)Variation of four biological traits of seeds had positively or negatively correlation with starch and protein,and seed length had a positive correlation with fat and reducing total sugar.(5)The correlation between biological traits and habitat factors was very complex.Panicle length had a positive significant correlation with frost-free-period,the correlation coefficient reached 0.832.In the mean time,panicle length had a negative correlation with altitude,the correlation coefficient reached-0.698.The quality of seed became slightly worse with latitude increasing.(6)Seeds were classified into three groups based on clustering analysis.Group I was characterized by short panicle and high nutrient content.GroupⅡwas seized of long panicle and high viability.GroupⅢhad seeds numerous and high starch content.Seed clustering did not show geographical effects.In a word,variation of biological traits and quality characteristics of seeds from different provenances were very rich,which indicate that there is a genetic basis from different provenances for progeny differentiation,and provenance screening needs to be combined with field experiments.