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对 9个香椿种源进行 10a的栽培试验 ,结果表明 :香椿种内变异丰富 ,不同种源树高、胸径、材积、生长量差异达 0 0 1极显著水平 .其树高、胸径、材积的遗传力分别为 76 90 % ,85 15 % ,97 34% :遗传变异系数分别为 10 2 7% ,18 10 % ,5 6 84% ;遗传增益分别为 5 40 % ,12 6 4% ,35 82 % ,具有较大的选择潜力 .并根据遗传参数、生长表现及其对环境条件的适应性 ,选择出湖南花垣、河南泌阳、河南卢氏等综合性状表现比较好、适合河南栽植的优良种源
The results showed that: the variation of Toona sinensis is rich, and the difference of tree height, DBH, volume and growth of different provenances reached extremely significant level, and its tree height, DBH, Heritabilities were 76 90%, 85 15% and 97 34% respectively: the genetic coefficient of variation was 10 27%, 18 10% and 56 84% respectively; the genetic gains were respectively 5 40%, 12 6 4% and 35 82 %, Has great potential for selection.According to genetic parameters, growth performance and its adaptability to environmental conditions, Hunan Huaguan, Henan Biyang, Henan Lushi and other comprehensive traits were selected to be better, which were suitable for elite planting in Henan source