Infectesd ratio and distribution area of 3 fungal diseases of barley in Zandjan province
1995
Moeini, M. R.
Barley is an important crop in the Zandjan province. This crop is annually exposed to different injurious factors among which fungi are the most important ones. During this study more than 16000 barley plants in 60 fields were examined and results are as follows: 1. Leaf stripe Helminthosporium gramineum is the most important disease of barley which has been distributed in 46.68 percent of fields and its average infectious ratio is 18.30 percent. 2. Barley scald Rhynchosporium secalis is the second one which has distributed in 31.61 percent of fields and its average infectious ratio is 23.35 percent. 3. Covered smut Ustilago hordei is the third one which has been distributed in 23.21 percent of fields and its average infectious ratio is 3.71 percent
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