Analisis Ketahanan Padi Gogo Dan Padi Sawah (Oryza sativa L) Terhadap Empat Ras Penyakit Blas (Pyricularia grisea Sace)

The aim of research was to determine the resistance level of local lines of rice I lines superior potential I national varieties of four dominant races bIas Indomesia Total number of samples was 22 lines I varieties and four blast races (033, 073, 133, and 173). The result showed that eight upland ril<e lines were resistant to race 033 and one strain (ketan hitam) was resistant to two races (033 and 173). While the lowland rice,only one line (Bojong Jengkol Surade), showed a response resistant to race 033.

Upland rice showed higher resistance (44%) than lowland rice (25%) to one race bias 033. These Lines have the potential as a parent to produce a blast resistance rice progenies. </p> <p> Agricola Vol 1.No 3. Hal 530-62 </p> <p> ISSN : 2088 - 1673 </p>