摘要
油茶是指种子含油率较高、且有一定栽培经营面积的山茶属（Camellia）植物的总称,目前已知全世界有280种,其中238种分布在我国（张宏达,1998）。油茶作为我国特有的木本食用油料树种,已有2 000多年的栽培历史（庄瑞林,2008）,与油橄榄（Olea europaea）、油棕（Elaeis guineensis）、椰子（Cocos nucifera）并称为世界四大木本油料植物。
To understand the key factors affecting fruit drop and to investigate the relationships between Curculio chinensis and fruit traits of Camellia meiocarpa, freshly fallen fruits were collected randomly with the parallel sampling method, and the weight, height and diameter of the fallen fruits were measured, and then the correlation analysis between C. chinensis damage and fruit traits of C. meiocarpa was conducted. The result showed that： GlomereUa cingulata and C. chinensis were the main factors affecting fruit drop. The infestation of pests would obviously affect the development of the fruits. C. chinensis infestation rate was negatively correlated with fruit size, and the damage rate presented a parabola change with the fruit shape index increasing from 0. 66 - 1.29, and had a maximum value of 27. 10% when the fruit shape index reached 1.04 ± 0. 03. However there was no relationship between C. chinensis infestation rate and pericarp thickness of C. meiocarpa.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2014年第12期151-155,共5页
Scientia Silvae Sinicae
基金
湖南省现代农业产业技术体系
湖南省科技厅项目(2010NK3011
2011FJ4298)
关键词
小果油茶
炭疽病
油茶象
危害率
果形指数
壳厚
Camellia meiocarpa
Glomerella cingulata
Curculio chinensis
infestation rate
fruit shape index
pericarp thickness
