Resistant varieties play a critical role on disease management of crops in Taiwan. The screening platforms for disease-resistance tests have been developed and applied to breeding of resistant varieties of crops, such as rice, Solanaceae, Cucurbitaceae, and Brassicaceae in TARI. Various pathogenic fungi, oomycetes, and viruses, have been collected and evaluated using the screening platforms by TARI and other research institutes.

Collections of isolates and races of pathogens for disease resistance tests

Fig. 1. Rice blast (A), powdery mildew of Cucurbitaceae (B), phytophthora blight of pepper and late blight of potato (C), and other pathogenic fungi for test.

Selection of resistant mustards against Turnip mosaic virus by  (TuMV) challenging inoculation and virus indexing

Fig. 2. (E)Collection of different virulent TuMV strains → (F) Plants were inoculated with TuMV and observed the development of disease → (G) Further virus indexing by ELISA & RT-PCR.