楸树苗干沙床催芽技术与萌芽能力分析比较  

Analysis and Comparison for Stratification Technique and Sprouting ability of Seedling stems of Catalpa bungei in Sand Bed

作　　者：董菊兰 李平英 王军辉[2] 师春鹃 韩云花 张惠军 贠慧玲 

机构地区：[1]甘肃省小陇山林业实验局林业科学研究所,甘肃天水741022 [2]中国林业科学研究院林业研究所

出　　处：《甘肃林业科技》2008年第2期12-14,34,共4页Journal of Gansu Forestry Science and Technology

基　　金：十一五国家科技支撑计划重大项目"农林动植物育种工程"(2006BAD01A1602);"十一五"国家科技支撑计划重点项目"速生丰产林建设工程关键支撑技术研究(2006BAD24B08)

摘　　要：对楸树29个无性系、15个家系的苗干,在特制的温床上进行催芽,试验结果表明:楸树的不同无性系和不同家系,其萌芽力不同。无性系中大叶金丝萌芽能力最高,萌芽数5.21个/m,家系中27号萌芽力最高,萌芽数3.71个/m。楸树的萌芽力与温、湿度及催芽处理时间有一定的关系,也与苗干的粗度有关,较粗的苗干萌芽力较高。The test was carried out on presowing treatment of 29 clones, 15 families of the seedling stems of clones was the highest, and budding number was 5.21 per meter, the sprouting ability of the 27th in the families was highest, budding number was 3.71 per meter. The sprouting ability of Catalpa bungei had certain re-lationships with the temperature, relative humidity and treated time, and also had relationships with the seedling stems thick, the seedling stems were thicker, the sprouting ability were higher.

关 键 词：楸树苗干 沙床催芽 萌芽能力 

分 类 号：S792.250.5[农业科学—林木遗传育种]