河南农业科学2013，Vol.42Issue(1)：77-81,5.
栓皮栎橡子虫蛀特征与种子雨进程的关系
Relationship between Insect Infestation and Seed Rain Dynamics of Oriental Cork Oak (Quercus variabilis)
摘要
Abstract
The seed rain dynamics of Quercus variabilis and the characteristics of weevil infestation were investigated in 2008 and 2009 in Luoyang Tianchi mountain forests. Our results showed that the seed rain of Quercus variabilis began from 24 August and ceased on 24 September,with seed density of (18. 33 ± 10. 05) acorn/m2 in 2008. In 2009, the seed rain began from 22 August and ceased on 28 September, with seed density of (26. 42 ± 14. 27) acorn/m2,significantly larger than that in 2008. In addition,large difference was also found in the composition of seed rain in the two years. In 2008, the proportions of sound acorns, aborted acorns and insect-infested acorns were 24. 09%, 55. 90% and 20. 01% , respectively. In 2009, however, the corresponding proportions were 50. 16%,30. 28% and 19. 56% respectively. The proportion of sound acorns in 2009 was significantly higher than that in 2008,while the proportion of aborted acorns in 2009 was significantly lower than that in 2009, but no significant difference was found in the proportion of insect-infested acorns between the two years. A significant positive relationship was found between infestation rate and acorn size,indicating that female weevils preferred larger acorns over smaller ones to oviposit.关键词
栓皮栎/种子雨/象甲虫/虫蛀Key words
Quercus variabilis /seed rain/weevil/infestation分类
农业科技引用本文复制引用
曹令立,董钟,刘文静,雷晶洁,申圳,杨月琴..栓皮栎橡子虫蛀特征与种子雨进程的关系[J].河南农业科学,2013,42(1):77-81,5.基金项目
国家自然科学基金项目(31172101) （31172101）
