杨树杂种无性系苗木生长性状比较研究  

Comparing Study on of Growth Traits Seedlings of Populus Crossbreed Clone

作　　者：周永学[1] 樊军锋[1] 蔺林田[2] 杨自湘[3] 苏晓华[3] 

机构地区：[1]西北农林科技大学林学院,陕西杨陵712100 [2]杨凌职业技术学院,陕西杨陵712100 [3]中国林科院林业研究所,北京100091

出　　处：《西北林学院学报》2004年第4期47-49,67,共4页Journal of Northwest Forestry University

基　　金：陕西省科技厅科技攻关项目"杨树新品种选育及油松遗传改良研究"(2002K02-G3-1)

摘　　要：以苗高、地径生长量和叶片自然感病程度为测定指标,对引进的26个杨树杂种无性系苗期生长性状进行了比较研究。结果表明,欧美杨杂种、美洲黑杨×青杨杂种无性系生长量和抗病性超过或接近对照品种107号杨或陕林4号杨,有进一步引种推广的前景;而美洲黑杨×小叶杨表现较差,建议有选择的保留。The height, ground diamerer and leaf natural infection degree were as measured to study seedling growth traits of Populus crossbreed clone. The result showed that the growth and resistance of P. × euramericana and P. deltoids × cathayana clone were higher or to P. × euramericana cl. ' 74/76' or P. deltoids × cathayana' SL-4 ' , and should be disseminoted; whereas P. deltoids × sinmonii was lower than comparision, it is suggested that P. del-toides × sinmonill be preservel by selecting.

关 键 词：欧美杨 美洲黑杨×青杨 美洲黑杨×小叶杨 杂种无性系 性状测定 

分 类 号：S722.33[农业科学—林木遗传育种]