Research on the resistance of different eggplant germplasm resources to Thrips palmi Karny(Thysanoptera:Thripidae)
In order to identify eggplant varieties with resistance to melon thrips and compare the differences between resis-tant and susceptible varieties,101 eggplant germplasm resources were evaluated using the leaf infestation index method and potting population density method in this experiment. The content of soluble sugar,free proline,soluble protein,flavo-noids and total phenol in the leaves of both insect-resistant and insect-sensitive varieties were analyzed. The results indi-cated that the 556007,501011,327031,403026,and 003022 varieties exhibited high resistance to melon thrips with pest indexes of 40.21％,38.36％,39.47％,42.89％ and 40.01％,respectively. Flavonoid and total phenol content in leaves of insect-sensitive varieties were significantly higher than those of insect-resistant varieties,while the differences in average content of soluble sugar,free proline,and soluble protein between insect-resistant and insect-sensitive varieties were not significant. The variety Zenong A7(556007)with the lowest infestation index exhibited the lowest flavonoid content in its leaves,whereas the variety Ziyan(626001)with the highest infestation index demonstrated high levels of flavonoid and has elucidated the characteristics of soluble sugars,flavonoids,and total phenols in their leaves. These findings can provide a theoretical basis for further selection and breeding of thrips-resistant eggplant varieties.
万方数据
维普
