Diseases of glasshouse plants (1923) Diseases of glasshouse plants diseasesofglassh1923bewl Year: 1923 DISEASES DUE TO FUNGI 55 spores, which are highly resistant to external conditions and carry over the disease from one season to another. Sometimes the spores are enclosed in tiny flask-Uke structures buried more or less deeply in the leaf, stem, or fruit tissues, and being thus protected are able to â y-( Fig. 3. (a) Hj'phfe, (6) thin-walled ' Buramer ' spores, (c) thick-walled resting spore, (d) a pycnidium, (e) a perithecium, (J) ascus containing eight ascospores. resist abnormal cond
Diseases of glasshouse plants (1923) Diseases of glasshouse plants diseasesofglassh1923bewl Year: 1923 DISEASES DUE TO FUNGI 55 spores, which are highly resistant to external conditions and carry over the disease from one season to another. Sometimes the spores are enclosed in tiny flask-Uke structures buried more or less deeply in the leaf, stem, or fruit tissues, and being thus protected are able to â y-( Fig. 3. (a) Hj'phfe, (6) thin-walled ' Buramer ' spores, (c) thick-walled resting spore, (d) a pycnidium, (e) a perithecium, (J) ascus containing eight ascospores. resist abnormal conditions. These bodies are of two kindsâthe pycnidia and perithecia. In the former the spores are produced on small stalks which line the inside of the vessel; in the latter case a number of small sacs are produced within the vessel, each of which contains
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