马尾松种子园优良家系选择研究 |
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引用本文: | 郑天汉.马尾松种子园优良家系选择研究[J].福建林学院学报,2003,23(2):150-154. |
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作者姓名: | 郑天汉 |
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作者单位: | 福建省林业厅林木种苗总站,福建福州,350003 |
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基金项目: | 国家"九五"攻关科学基金资助项目(96-011-01-01). |
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摘 要: | 对6年生马尾松种子园自由授粉家系子代测定,结果表明:种子园子代林材积、胸径、树高3个性状生长量明显大于对照的当地商品种.材积性状比对照增长40%,平均遗传增益达27%,最高家系材积增长率为126%,遗传增益达86%;胸径性状比对照增长17.8%,平均遗传增益15%,最高遗传增益38%;树高性状比对照增长6.1%,平均遗传增益5%,最高遗传增益16%.筛选出一批生长性状优良家系,可为新建的马尾松种子园提供选择材料,同时为现有种子园的去劣疏伐提供科学依据.
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关 键 词: | 马尾松 无性系种子园 遗传测定 家系选择 |
文章编号: | 1001-389X(2003)02-0150-05 |
修稿时间: | 2002年11月8日 |
Reselection of Fine Families of Pinus massoniana |
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Abstract: | According to the investigation of Pinus massoniana of 6 years old which is open pollinated family living in the seed garden,the results show that the volume,diameter and height of the filial generation forests increases clearly comparised with contral speciesThe volume increases by 40%,the average genetic gain is 27%,and the highest increase of volume is 126%,genetic gain reaches 86%The diameter increases by 178%,the average genetic gain is 15%,and the highest genetic gain is 38% The height increases by 61%,the average genetic gain is 5%,and the highest genetic gain is 16%Some first class families selecting from these testing breeds can be chosen to be the seeds of Pinus massoniana seed gardens |
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Keywords: | Pinus massoniana asexuality seed garden genetic test families selecting |
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