南京林业大学学报(自然科学版)
南京林業大學學報(自然科學版)
남경임업대학학보(자연과학판)
JOURNAL OF NANJING FORESTRY UNIVERSITY(NATURAL SCIENCE EDITION)
2005年
1期
29-32
,共4页
枫香%子代测定%遗传变异
楓香%子代測定%遺傳變異
풍향%자대측정%유전변이
对幼林期枫香首批优树的半同胞自由授粉家系子代进行生长分析.结果表明,在参试家系间存在着丰富的遗传变异,树高、年高、地径、冠幅和分枝数的家系遗传力分别为:14.53%~47.58%,13.36%~35.43%,6.40%~37.04%,14.25%~35.30%,6.19%~18.78%;每个性状的单株遗传力则分别为21.26%~52.91%,16.97%~28.63%,13.23%~22.22%,18.76%~30.69%,9.03%~15.58%;各性状的相关程度较高,树高、年高、地径及冠幅和分枝数等性状的加性遗传变异系数分别为4.979%~9.667%,5.913%~12.783%,5.164%~6.731%,6.240%~10.567%,4.952%~11.780%;估算的中选优良家系树高和地径的遗传增益分别为6.52%~19.00%和3.82%~24.32%.
對幼林期楓香首批優樹的半同胞自由授粉傢繫子代進行生長分析.結果錶明,在參試傢繫間存在著豐富的遺傳變異,樹高、年高、地徑、冠幅和分枝數的傢繫遺傳力分彆為:14.53%~47.58%,13.36%~35.43%,6.40%~37.04%,14.25%~35.30%,6.19%~18.78%;每箇性狀的單株遺傳力則分彆為21.26%~52.91%,16.97%~28.63%,13.23%~22.22%,18.76%~30.69%,9.03%~15.58%;各性狀的相關程度較高,樹高、年高、地徑及冠幅和分枝數等性狀的加性遺傳變異繫數分彆為4.979%~9.667%,5.913%~12.783%,5.164%~6.731%,6.240%~10.567%,4.952%~11.780%;估算的中選優良傢繫樹高和地徑的遺傳增益分彆為6.52%~19.00%和3.82%~24.32%.
대유림기풍향수비우수적반동포자유수분가계자대진행생장분석.결과표명,재삼시가계간존재착봉부적유전변이,수고、년고、지경、관폭화분지수적가계유전력분별위:14.53%~47.58%,13.36%~35.43%,6.40%~37.04%,14.25%~35.30%,6.19%~18.78%;매개성상적단주유전력칙분별위21.26%~52.91%,16.97%~28.63%,13.23%~22.22%,18.76%~30.69%,9.03%~15.58%;각성상적상관정도교고,수고、년고、지경급관폭화분지수등성상적가성유전변이계수분별위4.979%~9.667%,5.913%~12.783%,5.164%~6.731%,6.240%~10.567%,4.952%~11.780%;고산적중선우량가계수고화지경적유전증익분별위6.52%~19.00%화3.82%~24.32%.