IDENTIFICATION AND BIOLOGICAL CONTROL OF BASAL STEM AND ROOT ROT DISEASE OF SNAPDRAGON
For the first time wilt symptoms have been detected on the Snapdragon (<em>Antirrhinum majus </em>L) plants cultivated in the parks of Mosul University. The isolation of fungi from wilted plants on PDA medium revealed the presence of seven genera including; <em>Alternaria,</em&g...
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| Format: | Article |
| Language: | Arabic |
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College of Agriculture
2018-03-01
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| Series: | Mesopotamia Journal of Agriculture |
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| Online Access: | https://magrj.mosuljournals.com/article_161391_5b3f49af778aaabdc705083cdafb3d7c.pdf |
| Summary: | For the first time wilt symptoms have been detected on the Snapdragon (<em>Antirrhinum majus </em>L) plants cultivated in the parks of Mosul University. The isolation of fungi from wilted plants on PDA medium revealed the presence of seven genera including; <em>Alternaria,</em> <em>Aspergillus, Cladosporium, Fusarium, Macrophomina, Penicillium</em> and <em>Stemphyllium.</em> <em>Fusarium oxysporum</em> was the most frequent fungi approached 36.0 x 10<sup>2</sup> Colony Forming Unit/gm soil. <em>F.oxysporum</em> reduced significantly the chlorophyll content of infected plants, and the percentage of its inhibition increased up to 81.88 in severe infections. The infection caused significance stunting of plants when plant height inhibited by 58.09% in dead plants. Antagonism ability of <em>Trichoderma </em>species as <em>T.harzianum,</em> <em>T. viride</em>, and <em>T. reesei</em> against<em> F. oxysporum</em> showed control efficiency of.1.666, 2.333, and 2.666 respectively. |
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| ISSN: | 1815-316X 2224-9796 |