Frei Andrea, Gu Hainan, Bueno Juan M, Cardona Cesar, Dorn Silvia
Institute of Plant Sciences, Applied Entomology, Swiss Federal Institute of Technology (ETH), Zurich, 8092, Switzerland.
J Econ Entomol. 2003 Oct;96(5):1577-84. doi: 10.1093/jee/96.5.1577.
Antixenosis and antibiosis in the resistance of common beans (Phaseolus vulgaris L.) to the melon thrips, Thrips palmi Karny, were investigated under laboratory and field conditions. Experiments were conducted for four moderately resistant genotypes ('Brunca', BH-130, EMP 486, and FEB 115) in comparison with one susceptible genotype (APN 18). Multiple-choice tests recorded most thrips on EMP 486 and least on FEB 115. Dual-choice tests conducted in both laboratory and field confirmed the antixenotic effect of FEB 115 and the attractant effect of EMP 486 on thrips. These results demonstrate the significance of antixenosis in the resistance of common beans to T. palmi. Life-table studies showed significant differences in egg duration, immature and adult survivorship, female body length and longevity, daily oviposition rate, and total fecundity among the bean genotypes. The intrinsic rate of natural increase (r(m)) and its associated population parameters varied significantly with the bean genotype on which T. palmi cohorts were reared. Based on mean r(m) values, the five bean genotypes can be divided into two groups, with BH-130 and 'Brunca' being less favorable for the population growth of thrips than EMP 486 and FEB 115; the latter were comparable to the susceptible genotype APN 18. These life-table results indicate the role of antibiosis in enhancing the resistance of common beans to T. palmi.
在实验室和田间条件下，研究了普通菜豆（Phaseolus vulgaris L.）对瓜蓟马（Thrips palmi Karny）抗性中的抗生性和排趋性。对4个中度抗性基因型（‘Brunca’、BH - 130、EMP 486和FEB 115）与1个感病基因型（APN 18）进行了试验。多项选择试验记录到瓜蓟马在EMP 486上最多，在FEB 115上最少。在实验室和田间进行的双项选择试验证实了FEB 115对瓜蓟马的排趋性作用以及EMP 486对瓜蓟马的吸引作用。这些结果证明了排趋性在普通菜豆对棕榈蓟马抗性中的重要性。生命表研究表明，不同菜豆基因型在卵期、未成熟期和成虫期的存活率、雌虫体长和寿命、每日产卵率以及总繁殖力方面存在显著差异。棕榈蓟马群体所取食的菜豆基因型不同，其内在自然增长率（r(m)）及其相关种群参数也有显著变化。根据平均r(m)值，5种菜豆基因型可分为两组，与EMP 486和FEB 115相比，BH - 130和‘Brunca’对瓜蓟马种群增长的适宜性较低；后两者与感病基因型APN 18相当。这些生命表结果表明了抗生性在增强普通菜豆对棕榈蓟马抗性中的作用。
