为明确茶蚜Toxoptera aurantii Boyer de Fonscolombe寄主选择行为机理,通过自由选择法研究有翅成蚜对7个茶树品种的取食选择性,利用蚜量比值法对供试茶树品种进行抗性鉴定,并进一步分析茶蚜取食选择性与茶树叶片物理性状及主要生化成...为明确茶蚜Toxoptera aurantii Boyer de Fonscolombe寄主选择行为机理,通过自由选择法研究有翅成蚜对7个茶树品种的取食选择性,利用蚜量比值法对供试茶树品种进行抗性鉴定,并进一步分析茶蚜取食选择性与茶树叶片物理性状及主要生化成分的相关性。结果表明,有翅成蚜对7个茶树品种的取食选择性存在差异,其中对‘黄金芽’的选择性最强,而对‘黔茶1号’和‘黔茶10号’的选择性最弱。抗蚜性鉴定结果表明,供试茶树品种中,‘黔茶1号’‘黔茶10号’为抗虫品种;‘福鼎大白茶’‘龙井43’‘黔茶8号’为中抗品种;‘黔湄601’为感虫品种;‘黄金芽’为高感品种。Pearson相关性分析显示,茶蚜取食选择性与茶树叶片总厚度(r=-0.84)、下表皮厚度(r=-0.78)、栅栏组织厚度(r=-0.94)、咖啡碱含量(r=-0.91)、茶多酚含量(r=-0.94)呈显著负相关,与气孔密度(r=0.93)、游离氨基酸含量(r=0.94)呈显著正相关,而与海绵组织厚度(r=-0.27)、可溶性糖含量(r=0.75)无显著相关性。本研究可为我国抗蚜种质资源鉴选及利用、茶蚜的绿色防控提供理论依据。展开更多
In order to investigate the resistance of tea plant to tea aphid, the feeding behavior of tea aphids on six different tea cultivars was monitored by （EPG） technique. The result showed that the duration of El, E2 as ...In order to investigate the resistance of tea plant to tea aphid, the feeding behavior of tea aphids on six different tea cultivars was monitored by （EPG） technique. The result showed that the duration of El, E2 as well as （E I＋E2） which was feeding waveforrns of Toxoptera aurantii （Boyer） in tea phloem was significantly different by variance analysis （P〈0.05） and so did the duration of the probing of T. aurantii in all the tea tissues. And the six tea cultivars were classified into three groups with cluster analysis, based on the six major parameters which were durations of np, C, El, E2, F, and G waveforms, then the six major parameters of these three groups were detected by variance analysis, and the rank of six different tea cultivars＇ resistance to T. aurantii from strong to weak was Zhongcha 108, Sucha 1, Anjibaicha, Longjing 43, Xicha 5, and Sucha 120. As this result was in accord with the investigation into the tea field, we concluded that EPG technique was one of the most important means to examine tea plant resistance to T. aurantii and the durations of waveform El, E2 and （El＋E2） were important parameters for evaluating resistance of tea plants to tea aphids.展开更多
文摘为明确茶蚜Toxoptera aurantii Boyer de Fonscolombe寄主选择行为机理,通过自由选择法研究有翅成蚜对7个茶树品种的取食选择性,利用蚜量比值法对供试茶树品种进行抗性鉴定,并进一步分析茶蚜取食选择性与茶树叶片物理性状及主要生化成分的相关性。结果表明,有翅成蚜对7个茶树品种的取食选择性存在差异,其中对‘黄金芽’的选择性最强,而对‘黔茶1号’和‘黔茶10号’的选择性最弱。抗蚜性鉴定结果表明,供试茶树品种中,‘黔茶1号’‘黔茶10号’为抗虫品种;‘福鼎大白茶’‘龙井43’‘黔茶8号’为中抗品种;‘黔湄601’为感虫品种;‘黄金芽’为高感品种。Pearson相关性分析显示,茶蚜取食选择性与茶树叶片总厚度(r=-0.84)、下表皮厚度(r=-0.78)、栅栏组织厚度(r=-0.94)、咖啡碱含量(r=-0.91)、茶多酚含量(r=-0.94)呈显著负相关,与气孔密度(r=0.93)、游离氨基酸含量(r=0.94)呈显著正相关,而与海绵组织厚度(r=-0.27)、可溶性糖含量(r=0.75)无显著相关性。本研究可为我国抗蚜种质资源鉴选及利用、茶蚜的绿色防控提供理论依据。
基金supported by the National Natural Science Foundation of China(31071744)the Natural Science Foundation of Zhejiang Province, China(Y3100375)
文摘In order to investigate the resistance of tea plant to tea aphid, the feeding behavior of tea aphids on six different tea cultivars was monitored by （EPG） technique. The result showed that the duration of El, E2 as well as （E I＋E2） which was feeding waveforrns of Toxoptera aurantii （Boyer） in tea phloem was significantly different by variance analysis （P〈0.05） and so did the duration of the probing of T. aurantii in all the tea tissues. And the six tea cultivars were classified into three groups with cluster analysis, based on the six major parameters which were durations of np, C, El, E2, F, and G waveforms, then the six major parameters of these three groups were detected by variance analysis, and the rank of six different tea cultivars＇ resistance to T. aurantii from strong to weak was Zhongcha 108, Sucha 1, Anjibaicha, Longjing 43, Xicha 5, and Sucha 120. As this result was in accord with the investigation into the tea field, we concluded that EPG technique was one of the most important means to examine tea plant resistance to T. aurantii and the durations of waveform El, E2 and （El＋E2） were important parameters for evaluating resistance of tea plants to tea aphids.
