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http://dx.doi.org/10.5423/RPD.2003.9.3.125

Rust of Iris nertschinskia Caused by Puccinia iridis  

Kwon, Jin-Hyeuk (Gyeongsangnam-do Agricultural Research and Extension Services)
Park, Chang-Seok (College of Agriculture and Life Sciences, Gyeongsang National University)
Publication Information
Research in Plant Disease / v.9, no.3, 2003 , pp. 125-127 More about this Journal
Abstract
Rust disease was occurred on Iris in several farmer's fields fields located in Hoehwa-myon, Goseong-gun, Gyeong-nam province in Korea. The typical symptoms of the disease appeared first as small, yellowish spot on leaves. The spots then turn brown, their edges rised slightly, and powdery mass of yellowish brown spores revealed on the lesions. Severely infected leaves were blighted and eventually died. Urediniospores were yellowish brown to reddish brown in color, obobid to obovoid in shape and 22~30 ${\times}$ 21~25${\mu}m$m in size. Teliospores were chestnet-brown in color, oblong or clavate in shape and 32~54 ${\times}$ 12~22${\mu}m$ in size. The causal fungus was identified as Puccinia iridis, based on morphological characteristics. This is the first report on the rust of Iris nertschinskia by Puccinia iridis in Korea.
Keywords
Iris nertschinskia; Puccinia iridis; rust;
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