摘要
对甘肃省小陇山林业实验局林业科学研究所36个家系落叶松苗期(2年生)进行变异分析各家系间存在变异,变异系数在3.0%~29.0%,平均为13.6%。各家系间苗高生长量差异极显著,191号家系苗高生长量最快,为51.5cm,64号家系苗高生长量最慢,为35.2cm,生长最快的191号苗高比生长最慢的苗高快64.3%;通过家系间的选择方法,能够实现落叶松生长的遗传优良选育。
Variation analysis among the larix families was done to two-year's old seedlings of 36 larix families in the experiment station and coefficient of variation was observed to be between 3.0% and 29.0%, an average on 13.6%. Significant difference was among their height growth, with family No. 191 to be fastest, up to 51.5cm and family No. 64 to be slowest, only 35.2cm. Height growth with No. 191 family is 64.3% over No. 64. Selections among the families provide a basis for selection of fine genetic properties of larix.
出处
《陕西林业科技》
2007年第3期46-49,共4页
Shaanxi Forest Science and Technology
基金
国家“十一五”科技支撑计划重点项目
关键词
落叶松
家系
苗高
生长量
变异
Larix
families
seedling height
growth volume
variation