Correlation between Inclusion Contents in Casuarina spp. Twigs and Its Resistance to Lymantria xylina
Correlation between Inclusion Contents in Casuarina spp. Twigs and Its Resistance to Lymantria xylina作者机构：Fujian Academy of Forestry Sciences Fujian Agriculture and Forestry University
出 版 物：《Plant Diseases and Pests》 (植物病虫害研究（英文版）)
年 卷 期：2014年第5卷第4期
页 面：9-12页
基 金：Supported by National Science and Technology Support Program(2009BADB2B02) Key Science and Technology Program of Forest Tree Seedlings and Forestry Scientific Research Project in Fujian Province(MLK6)
主 题：Casuar/na spp. Twigs Inclusions Lymantria xylina Swinhee Resistance mechanism
摘 要：[ Objective ] The paper was to explore the correlation between inclusion contents in Casuarina spp. twigs and its resistance to Lymantria xylina. [ Method] Three types of representative Casuar/na spp. strains including resistant strains （Zhanjiang 3, Hui 76, Hui 83, Guangdong A8-2）, moderate resistant strains （Pingtan 2, Hui 1, Long 7-18） and susceptible strains （Dongshan 2, Guangdong 501, Kang[eng） were tzst~ as materials to determine the contents of six kinds of inclusions, total phenol, tannin, flavonoids, protein, soluble sugar and polysaccharide. [ Result] The resistant strains had higher flavonaids, tannin and total phenol contents and lower soluble sugar and protein contents than the susceptible strains, while the content of polysaccharide acted randomly. The grey correla- tivity analysis showed that resistance degree, pupation rate and pupal weight had high correlation with protein and soluble sugar contents, with correlation index equal to or above 0.500 0. [ Conclusion] The study provided a theoretical basis for screening and promotion of resistant strains against L xylina.
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