杉木第三代种子园自由授粉子代苗期测定试验  

Study on the Seedling Test of Free Pollination of the Third Generation Seed Orchard of Chinese Fir

作　　者：詹新标 

机构地区：[1]永安市林业局,福建永安366000

出　　处：《安徽农学通报》2017年第12期110-113,共4页Anhui Agricultural Science Bulletin

摘　　要：该试验对永安杉木第三代种子园的28个无性系良种,以第2代、第1.5代的杉木种子园良种为对照,开展苗期生长特性测定比较。结果表明:杉木第三代的不同无性系的苗高、地径和生物量均达到了显著性差异水平,表明不同杉木无性系良种生长发育存在明显的差异;将不同杉木无性系良种划分为高生长型、中等生长型、低生长型,其中高生长型的无性系有2、4、14和22;利用苗高、地径和生物量3个性状,进行多性状综合评价并根据种子园的管理原则选出2、22、11为最好的采种母株,其苗高、地径和生物量的平均遗传增益分别达12.75%、13.20%和14.82%。In this experiment,28 clones of the 3rd generation seed yard of Yong＇an Chinese fir were selected,and thegrowth characteristics of seedling were compared with the seedling of the second generation and 1.5 generation. Theresults showed the seedling height,ground diameter and biomass of the third generation of Chinese fir were signifi-cantly different,and there were significant differences in the growth and development of different Chinese fir clones.Through cluster analysis,different varieties of Chinese fir were divided into low-growth type,medium growth typeand high-growth type,which had treatments 2,4,14 and 22 clones. Using the three traits of seedling height,grounddiameter and biomass,the multi-trait comprehensive evaluation and according to the management principles of theseed garden to select the treatment of 2,22,11 for the better seed plant,the average genetic gain of seedling height,ground diameter and biomass were 12.75%,13.20% and 14.82%,respectively.

关 键 词：杉木 种子园 育苗 聚类分析 多性状综合评价 

分 类 号：S79[农业科学—林木遗传育种]