Abstract:Tomato powdery mildew, caused by Oidium neolycopersici, is a common disease of tomato, especially in greenhouse conditions. To investigate the nature of powdery mildew resistance, we studied the hi stopatho logy of the infect ion pro cess in six dif fer ent tomato ge not ypes : CNPH 41 6, CNPH 42 3, CNP H 12 87 ( Ly co pe rs icon hirsutum), CNPH 0081 (L. esculentum var. cerasiforme), cv. Santa Cruz Kada e cv. Santa Clara (L. esculentum). Leaf discs of the 3 rd , 4 th e 5 th leaves from plants with 5-7 true lea… Show more
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