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当前位置: 首页 > 文章 > 不同基因型腐烂茎线虫侵染不同甘薯品种后生物学特性研究 西南农业学报 2017,30 (1) 93-98
Position: Home > Articles > Study on Biological Characteristics of Different Genotypes Ditylenchus destructor Infected on Different Sweet Potato Varieties Southwest China Journal of Agricultural Sciences 2017,30 (1) 93-98

不同基因型腐烂茎线虫侵染不同甘薯品种后生物学特性研究

作  者：
王宏宝;李茹;付佑胜;赵桂东;梁照文;张凯
单  位：
江苏徐淮地区淮阴农业科学研究所;宜兴出入境检验检疫局
关键词：
腐烂茎线虫;营养环境;繁殖量;雌雄比
摘  要：
通过在不同抗性甘薯品种上接种不同基因型腐烂茎线虫来研究线虫群体繁殖量、性比的生物学特性。结果表明,基因型B群体De YL随着接种数量的增加,线虫在不同甘薯品种下繁殖数量均显著增加,其中在栗子香品种上的繁殖量增加最高,与其它2个甘薯品种相比,线虫繁殖量在(P<0.05)上差异显著;随着接种量的增加,在栗子香上线虫性比从0.77增加到1.44,表现线虫向雌虫方向分化;在徐薯18上同样表现为线虫向雌虫分化,相关性分析发现,在胜利百号、栗子香、徐薯18甘薯品种上,线虫群体繁殖量与性比均呈正相关,相关系数分别为0.987、0.477、0.984;同一接种量下3个线虫群体的繁殖量与性比测定结果显示:3个线虫群体繁殖量、雌雄比在不同甘薯品种下差异显著,证实了线虫生长环境对于线虫的生长发育,性比有一定的影响;3个线虫群体均表现为感病品种栗子香上繁殖量高,雌雄比高,线虫性别偏向雌虫分化。
译  名：
Study on Biological Characteristics of Different Genotypes Ditylenchus destructor Infected on Different Sweet Potato Varieties
作  者：
WANG Hong-bao;LI Ru;FU You-sheng;ZHAO Gui-dong;ZHAO Wen-liang;ZHANG Kai;Jiangsu Institute of Agricultural Sciences Xuhuai Region Huaiyin;Yixing Entry-exit Inspection and Quarantine Bureau of People's Republic of China;
关键词：
Ditylenchus destructor;;Nutrient environment;;Production;;Male and female ratio
摘  要：
The biological characteristics of different genotypes Ditylenchus destructor infected on the resistant and susceptible sweet by inoculation of different numbers of Ditylenchus destructor from different area in China were studied. The result showed that with the increase of De YL,nematode population were significant increased in different varieties,and compared with the other 2 varieties,the amount of nematode propagation in Lizixiang sweet potato varieties were significantly different at 0. 05 level; With the increase of inoculation rate in Lizixiang,sex ratio of nematode increased from 0. 77 to 1. 44 and showed the differentiation of female nematode; In Xushu-18 also shown as to the differentiation of female nematode,the correlation analysis showed that the fecundity and the ratio of nematode populations were positively correlated with three varieties of sweet potato,and their correlation coefficients were 0. 987,0. 477 and 0. 984,respectively; Under the same quantity,the production and sex ratio of three different nematodes indicated that the different populations of nematodes had significant differences in different nutrition conditions,which was proved that the growth environment of the nematode had a certain effect on the growth and development of nematode; Three different nematode populations performed high production,high sex ratio and gender to female differentiation on Lizixiang sweet potato varieties.

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