文献类型：期刊文献

中文题名：美国山核桃根段育苗试验

英文题名：Experiment on Seedling Cultivation by Root of Carya illinoensis

作者：常君[1] 姚小华[1] 王开良[1] 夏根清[2] 徐永星[2] 倪德良[2]

第一作者：常君

机构：[1]中国林业科学研究院亚热带林业研究所国家林业局亚热带林木培育重点开放性实验室;[2]浙江省建德市林业局

年份：2009

卷号：29

期号：3

起止页码：61-63

中文期刊名：浙江林业科技

外文期刊名：Journal of Zhejiang Forestry Science and Technology

收录：北大核心:【北大核心2008】；

基金：948"薄壳山核桃优质苗木繁殖技术引进"(2006-4-82);科技部农业成果转化项目"薄壳山核桃新品种集成栽培技术与中试示范"(2006GB24320401)

语种：中文

中文关键词：美国山核桃;根段;种子;育苗

外文关键词：Carya illinoensis; root; seed; seedling cultivation

分类号：S723.1

摘要：对美国山核桃（Carya illinoensis）进行不同粗度根段和不同ABT6浓度浸泡处理育苗试验，结果表明，各处理苗木高度、地径、出苗率均与实生苗对照表现出显著性差异，种根粗度减小，各指标均呈现下降趋势。〉1．2～1．6cm径级根段的出苗率和苗木地径最大，分别达到67．5％和0．52cm，苗木高度则以〉0．8～1．2cm粗度径级根段最大，为14．98cm，但无论苗木地径还是苗木高度均小于同期播种的实生苗，苗高仅为对照（31．40cm）的47．73％，地径仅为对照（0．72cm）的71．68％。采用根段育苗虽可节省种子成本，但苗木生长相对较为纤弱，需培育多年才能达到当年实生苗的平均水平，且取根不易，不适于规模化扩繁。因此，从工效、成本和生长情况综合考虑，美国山核桃育苗应优先选择种子繁殖而非根段育苗。
Experiment was conducted on seedling cultivation by root of Carya illinoensis with different size of root and treated by different concentration of ABT6 in the demonstration bases of Jiande city, Zhejiang province. The results showed that the seedling height, basal diameter, seedling rate of treated by ABT6 had significant difference with the control, and had positive relation with diameter of mother root. Seedling rate and basal diameter from mother root of 0.8-1.2cm could top to 67.5% and 0.52em. Seedling height reached 14.98 from mother root of 0.8-1.2. But basal diameter and seedling height form mother root was only 71.68% and 47.73% of that from seed. Compared to seedling cultivation by seed, that by root had disadvantages such as weak growth and difficult to get mother root. Therefore, seedling cultivation from seed was recommended.