不同番茄品种对西花蓟马为害的生理响应

Physiological Response of Different Tomato Varieties to Frankliniella occidentalis Damage

以5个番茄品种为试材,通过测定西花蓟马(Frankliniella occidentalis)为害后番茄各项生理指标的综合变化,并结合西花蓟马种群动态趋势,探讨番茄不同品种的抗性强弱。结果表明:蓟马为害后,引起番茄叶片内蜡质、单宁、游离脯氨酸及总酚含量的变化。蓟马数量与蜡质、单宁、游离脯氨酸含量呈正相关,与总酚含量呈负相关。抗性强的"瑞芬"品种,其单宁、游离脯氨酸、总酚含量较其它品种变化快,感虫品种"中研TT"物质含量变化相反,其它品种含量及变化居中。蜡质含量在各品种间偏低。

Five different varieties of tomatoes were used as materials,the resistance of tomatoes was determined by measuring synthetic variations of all physiological indexes and the correlation analysis between physiological activity and population dynamics after Frankliniella occidentalis damage.The results showed that waxes content,tannic acid content,free proline content and phenols content changed after tomato leaves damaged,and there were positive correlation among waxes content,tannic acid content,free proline content and the number of thrips,there were negative correlations aomog phenols content and the number of thrips.The tannic acid,free proline and phenols content of resistant variety‘Ruifen＇changed more fastly than other varieties,the susceptible variety‘Zhongyan TT＇changed in the opposite,and the others resistant in the middle.Wax content was generally low.