| 引种美洲黑杨无性系的苗期遗传测定与选择 |
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| 引用本文： | 解荷锋 潘礼晶. 引种美洲黑杨无性系的苗期遗传测定与选择[J]. 山东林业科技, 1996, 0(2): 13-16 |
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| 作者姓名： | 解荷锋 潘礼晶 |
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| 作者单位： | 山东省林木种苗站，宁阳县林业局，宁阳县高桥林场，宁阳县西疏乡林业站 |
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| 摘 要： | ９７个美洲黑杨无性系经苗期测定结果表明：苗高、地径的生长，表现出无性系间的显著差异，具有较丰富的遗传变异基础，广义遗传力分别为８０．２３％和７２．９９％，二性状间表现出极显著的遗传相关。以苗高的ＬＳＤ多重比较，选择出生长最好的４１个无性系，其苗期生长水平超过或相当于中林２３杨；用苗高和地径的综合指数选择，淘汰生长最差的２９个无性系，保留的６８个无性系作为育种资源保存。
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| 关 键 词： | 美洲黑杨，引种，遗传相关，苗期测定，无性系选择 |
CLONAL NURSEKY GENETIC TESTING AND SELECTION OF INTRODUCING COTTONWOOD |
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| Xie Hefeng et al.. CLONAL NURSEKY GENETIC TESTING AND SELECTION OF INTRODUCING COTTONWOOD[J]. Journal of Shandong Forestry Science and Technology, 1996, 0(2): 13-16 |
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| Authors: | Xie Hefeng et al. |
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| Affiliation: | Xie Hefeng et al. |
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| Abstract: | Nursery testing of 97 cottonwood clones was conducted. The results showed thatthe difference of height and diameter among clones were significant,genetic variation was varyrich, the broad-sense heritability of height and diameter were 80.23%and 72.99% respectively,the genetic correlation coefficient between two characters was extremely significant. The best 41clones were selected by LSD multiple comparisons of height. Seedling growth of the clones wasbetter than that of W-23, or same as. According to index selection of height and diameter, theworst 29 clones were sifted out and the other 68 clones used as breeding resouces were conserved. |
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| Keywords: | Cottonwood Introduction Genetic correlation Nursery testing Clones selection |
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