南昌工程学院学报
南昌工程學院學報
남창공정학원학보
JOURNAL OF NANCHANG INSTITUTE OF TECHNOLOGY
2014年
4期
108-110
,共3页
优良家系%遗传力%马尾松
優良傢繫%遺傳力%馬尾鬆
우량가계%유전력%마미송
superior families%genetic gains%pinus massoniana
以8 a 生马尾松子代林33个家系为对象，对其生长性状进行调查分析，结果表明，31号家系的平均胸径、树高和材积均显著高于其他家系，分别为11.74 cm、7.87 m、0.0398 m3.以平均胸径、树高大于群体5%以上，平均材积大于群体15%以上为优良家系标准，选择31和4号家系作为推荐品系.胸径和材积的家系遗传力较高，分别为0.31和0.30，材积的遗传增益最大，达到了0.64.
以8 a 生馬尾鬆子代林33箇傢繫為對象，對其生長性狀進行調查分析，結果錶明，31號傢繫的平均胸徑、樹高和材積均顯著高于其他傢繫，分彆為11.74 cm、7.87 m、0.0398 m3.以平均胸徑、樹高大于群體5%以上，平均材積大于群體15%以上為優良傢繫標準，選擇31和4號傢繫作為推薦品繫.胸徑和材積的傢繫遺傳力較高，分彆為0.31和0.30，材積的遺傳增益最大，達到瞭0.64.
이8 a 생마미송자대림33개가계위대상，대기생장성상진행조사분석，결과표명，31호가계적평균흉경、수고화재적균현저고우기타가계，분별위11.74 cm、7.87 m、0.0398 m3.이평균흉경、수고대우군체5%이상，평균재적대우군체15%이상위우량가계표준，선택31화4호가계작위추천품계.흉경화재적적가계유전력교고，분별위0.31화0.30，재적적유전증익최대，체도료0.64.
This paper analyzes the growth traits and genetic gains of 33 selected families in the 8-year-old pinus massoniana progeny forest. The results show that tree height,diameter at breast height,and volume of No. 31 are 11. 74 cm,7. 87 m,and 0. 039 8 m3 respectively,which is significantly higher than those of other families. It further set a standard that superior families should be higher than the population by 5%in the tree height and diameter at breast height and 15% in volume. Therefore,No. 31 and No. 4 are se-lected. The heritability of DBH and tree volume are 0. 31 and 0. 30,with the latter getting the highest ge-netic gain of 0. 64.
