摘要
在梅州市梅江区西阳镇、兴宁市径南镇和平远县长田镇3片油茶林(Camellia oleifera)采果后调查主要叶部病害种类、病情及其空间分布。结果表明:主要病害为炭疽病、软腐病、藻斑病、褐斑病,病情指数大小依次为:炭疽病(61.30)>软腐病(57.96)>藻斑病(41.36)>褐斑病(28.52),炭疽病、软腐病和藻斑病危害程度较重,褐斑病危害程度较轻;炭疽病、软腐病和藻斑病在油茶林皆呈均匀分布,而褐斑病呈聚集分布,聚集均数入为4.635 1,大于2,该病由外界环境和其本身生物学特性相互共同作用引起。
Three planting base of Camellia oleifera were surveyed to study postharvest major diseases and spatial distribution in Meizhou. The results showed that major pathogen were Colletotrichum gloeosporioides, Agaricodochium camelliae, Cephaleuros virescens, Cercospora sp.. The order of disease index was Colletotrichum gloeosporioides 〉 Agaricodochium camelliae 〉 Cephaleuros virescens 〉 Cercospora sp.. The damage of Colletotrichum gloeosporioides, Agaricodochium camelliae and Cephaleurosvirescens were more serious than Cercospora sp. and Colletotrichum gloeosporioides, Agaricodochium camelliae and Cephaleurosvirescens presented a uniform distribution while Cercospora sp. presented aggregated distribution.
出处
《林业与环境科学》
2016年第3期41-44,共4页
Forestry and Environmental Science
基金
广东省林业科技创新项目"梅州乡土油茶良种选育及高效栽培技术研究与示范"(2013KJCX009-02)
关键词
油茶
病害
空间分布
梅州市
Camellia oleifera
disease
spatial distribution
Meizhou city
