Onion Smudge
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In our eReader you can find the full English version of the book. Read Onion Smudge Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Onion Smudge
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— Studies were made on conidia as they occur (i) in masses on the fruiting body on the host, where they are embedded in the mucilaginous material which surrounds them, (2) in similar masses on potato agar, and (3) in water suspension, where the spores are sepa- rated from one another, approximating to some extent conditions as Onion Stmidge 699 they occur in nature when spores are disseminated by meteoric water.
Diseased onions bearing spore masses were brought in and allowed to dry out gradual...ly in the laboratory, and the viability of the spores was tested from time to time. Ordinarily a large percentage lost their vitality within 2 weeks, but in some cases good germination occurred after 7 weeks. A small percentage of conidia from spore masses pro- duced on potato agar and exposed to similar conditions germinated after 4 months. Spores in water suspension allowed to dry out on glass slides were very sensitive to desiccation, little or no germination occurring after 24 hours. It is evident, then, that the conidia are sensitive to desiccation except when they remain in waxy masses on the host, in which condition a small percentage will remain viable through extended unfavorable periods.
What to read after Onion Smudge?
You can find similar books in the "Read Also" column, or choose other free books by Walker, J. C. (John Charles), 1893- to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
— Studies were made on conidia as they occur (i) in masses on the fruiting body on the host, where they are embedded in the mucilaginous material which surrounds them, (2) in similar masses on potato agar, and (3) in water suspension, where the spores are sepa- rated from one another, approximating to some extent conditions as Onion Stmidge 699 they occur in nature when spores are disseminated by meteoric water.
Diseased onions bearing spore masses were brought in and allowed to dry out gradual...ly in the laboratory, and the viability of the spores was tested from time to time. Ordinarily a large percentage lost their vitality within 2 weeks, but in some cases good germination occurred after 7 weeks. A small percentage of conidia from spore masses pro- duced on potato agar and exposed to similar conditions germinated after 4 months. Spores in water suspension allowed to dry out on glass slides were very sensitive to desiccation, little or no germination occurring after 24 hours. It is evident, then, that the conidia are sensitive to desiccation except when they remain in waxy masses on the host, in which condition a small percentage will remain viable through extended unfavorable periods.
What to read after Onion Smudge?
You can find similar books in the "Read Also" column, or choose other free books by Walker, J. C. (John Charles), 1893- to read onlineMoreLess
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