摘要
1993~1995年在浙江省新安江开发公司姥山林场杉木种子园检测了14个无性系,762株标准株,5040个球果。结果表明,引起球果死亡的主要病害是杉木雌雄花序幼果枯萎病、杉木球果赤枯病和杉木球果炭疽病。球果害虫主要是杉木球果瘿蚊、杉木球果麦蛾和杉木扁长蝽等。不同无性系球果对病虫害的抗性有极显著的差异,并筛选出龙泉20和开化0为抗性无性系,确定临安131为敏感无性系以及其他推荐和建议淘汰的无性系。着生于北面的球果死亡率极显著高于东、南、西3个方位。
The Chinese fir cones were mainly harmed by three diseases,i e Botrytis cinerea,Pesealotiopsis apiculatus and Giomerella cingulata,and three pests,i e galls in Chinese fir cones,Dichomeris sp and Sinorsillus piliferus There were obvious variances between the resistances of the cones in different clones Two clones,Longquan 20 and Kaihua 0,could resist the damage of diseases and pests,and Lin′an 131 was sensitive to diseases and pests Mortality rate of cones at the north of crowns was obviously higher than that at the other directions
出处
《浙江林学院学报》
CSCD
1997年第1期35-40,共6页
Journal of Zhejiang Forestry College
关键词
杉木
种子园
无性系
球果
抗虫性
抗病性
Chinese fir(Cunninghamia lanceolata)
seed orchard
clone
cones(plant)
insect resistance(plant)
disease resistance