Fontes de resist那ncia 角 murcha bacteriana em germoplasma de Capsicum spp. do estado do Amazonas

作者：Demosthenes; Liane Cristine Rebouas; Bentes; Jania Lilia da Silva

来源：Acta Amazonica, 2011.

DOI：10.1590/S0044-59672011000300016

• peppers
• sweet pepper
• ralstonia solanacearum.

the bacterial wilt caused by ralstonia solanacearum is one of the most important in the genus capsicum in brazil. in the state of amazonas, high temperatures and humidity favor the development of the disease. the objective of this work was to evaluate resistance in germoplasm of wild and commercial capsicum spp. to bacterial wilt. twenty two accesses of capsicum spp. were evaluated in greenhouse conditions. the inoculation was made by means of wounds in the roots, followed by addition of bacterial suspension in the concentration of 108 ufc ml-1 in the soil, around the plants. plant evaluation was made daily after the fourth day of the inoculation (dai) considering the symptoms progress. from the average progress of symptoms was constructed the area under the disease progress curve (audpc), and the data submitted to the scott-knott test at 5% of probability, using saeg statistical program. from the average severity notes, we constructed the area under the disease progress curve (audpc). the accesses 30, 20 and 17 were selected from c. chinense as resistant to the bacterial wilt, for future use in genetic breeding programs.