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林业科学 ›› 2014, Vol. 50 ›› Issue (12): 151-155.doi: 10.11707/j.1001-7488.20141221

• 研究简报 • 上一篇    下一篇

油茶象危害与小果油茶果实特征的相关性

何立红, 李志文, 刘劲军, 司嘉怡, 曾爱平   

  1. 湖南农业大学昆虫研究所 植物病虫害生物学与防控湖南省重点实验室 长沙 410128
  • 收稿日期:2013-12-09 修回日期:2014-03-24 出版日期:2014-12-25 发布日期:2015-01-08
  • 通讯作者: 曾爱平
  • 基金资助:

    湖南省现代农业产业技术体系;湖南省科技厅项目(2010NK3011,2011FJ4298).

Correlation between Damage of Curculio chinensis and Fruit Traits of Camellia meiocarpa

He Lihong, Li Zhiwen, Liu Jingjun, Si Jiayi, Zeng Aiping   

  1. Institute of Insect, Hunan Agricultural University Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests Changsha 410128
  • Received:2013-12-09 Revised:2014-03-24 Online:2014-12-25 Published:2015-01-08

关键词: 小果油茶, 炭疽病, 油茶象, 危害率, 果形指数, 壳厚

Abstract:

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: Glomerella 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.

Key words: Camellia meiocarpa, Glomerella cingulata, Curculio chinensis, infestation rate, fruit shape index, pericarp thickness

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