ABSTRACT


DORA VOLOSKY DE HERNADEZ1
 

The charaeteristics of the disease Puccinia Helianthi of the sunflower crop, first confirmed in Chile in 1954, are described.
The programm followed to determine the geographical distribution of sunflower rust is explained.
Tests were made of the reaction to the disease, under greenhouse conditions, of 240 lines of sunflower derived from resistant Canadian plants and some Chilean crosses. Fortysix plants were obtained which were resistant to the strain of rust used.

Keywords:
1 Fitopatólogo del Departamento de Investigaciones Agrícolas