Phytopathology, Volume 8American Phytopathological Society, 1918 List of members of the society accompany v. 22 no. 9, v. 25 no. 5, v.38 no. 8, v.43 no. 5. |
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Results 1-5 of 47
Page 25
... pycnidia or conidia from culture into clefts in the bark of fig cuttings which had been rooted during the previous winter and spring . No cankers developed except in the case. FIG . 1. CANKERS ON FIG BRANCHES CAUSED BY MACROPHOMA FICI X ...
... pycnidia or conidia from culture into clefts in the bark of fig cuttings which had been rooted during the previous winter and spring . No cankers developed except in the case. FIG . 1. CANKERS ON FIG BRANCHES CAUSED BY MACROPHOMA FICI X ...
Page 26
... pycnidia are in accord with those of Macrophoma Fici . These pycnidia are found to vary from 200 to 300 μ whereas the 20u FIG . 2. CONIDIA OF MACROPHOMA FICI All of these conidia are from the same pycnidium , and show the variation in ...
... pycnidia are in accord with those of Macrophoma Fici . These pycnidia are found to vary from 200 to 300 μ whereas the 20u FIG . 2. CONIDIA OF MACROPHOMA FICI All of these conidia are from the same pycnidium , and show the variation in ...
Page 74
... Pycnidia containing spores are present . Pycnidia apparently identical with those on fruit and leaves appeared in obscure lesions on the twigs , but as spores were lacking at the time of examination , positive identification could not ...
... Pycnidia containing spores are present . Pycnidia apparently identical with those on fruit and leaves appeared in obscure lesions on the twigs , but as spores were lacking at the time of examination , positive identification could not ...
Page 80
... pycnidia , were distributed here and there . A tube of each , that is one con- taining the conidia and the other the pycnospores , remained in a card index filing case until November 7 , 1917 , when transfers were again made to oats and ...
... pycnidia , were distributed here and there . A tube of each , that is one con- taining the conidia and the other the pycnospores , remained in a card index filing case until November 7 , 1917 , when transfers were again made to oats and ...
Page 298
... pycnidia of C. viticola . Internally many of the internodes were found to have been rendered pithless . A pithless internode sometimes occurred between internodes showing no injury at all or between those showing only slight injury ...
... pycnidia of C. viticola . Internally many of the internodes were found to have been rendered pithless . A pithless internode sometimes occurred between internodes showing no injury at all or between those showing only slight injury ...
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Common terms and phrases
Abies acid aecial stage aeciospores agar Agriculture Alternaria appear areas Arth bean beet blight Bordeaux mixture Bureau of Plant cabbage Caeoma caused cent cerebrum Coleosporium collected color comptoniae conidia coöperation cotyledons Cronartium Cronartium ribicola crop developed effect Expt Federal Horticultural Board field formaldehyde fruit fungi fungus Fusarium germination greenhouse growth healthy Hedgcock host hyphae hypocotyls illus infection injury inoculations investigation Jour leaf leaf-roll leaves lesions lightning lingam Literature cited Melampsora mosaic disease muscicola mycelium nursery observed organism overwintering parasitic pathologists Peridermium Peridermium cerebrum Phoma Phytopathology pine Pinus Plant Disease Survey Plant Industry plant pathology plates potato Pucciniastrum pycnidia reported ribicola rust scab season seed treatment seedlings showed smut soil solution species specimens spores sporophores spots spraying stem sterilized strains surface telial tests tion tissues tomato trees tritici tubers uredinia uredinial urediniospores varieties wheat wilt Wisconsin writer
Popular passages
Page 171 - person" as used in this Act shall be construed to import both the plural and the singular, as the case demands, and shall include corporations, companies, societies and associations. When construing and enforcing the provisions of this Act, the act, omission, or failure of any officer, agent, or other person acting for or employed by any...
Page 172 - Congress, later of the office of foreign seed and plant Introduction of the Bureau of Plant Industry.
Page 171 - Nursery stock, including all field-grown florists' stock, trees, shrubs, vines, cuttings, grafts, scions, buds, fruit pits and other seeds of fruit and ornamental trees or shrubs, and other plants and plant products for propagation, except field, vegetable, and flower seeds, bedding plants and other herbaceous plants, bulbs, and roots...
Page 141 - This latter probability has an important bearing both from the standpoint of the public health and economic interests, and the Bureau of Plant Industry of the United States Department of Agriculture has undertaken an investigation of corn with a view to determining its possible relation to the development of pellagra.
Page 155 - An act to provide further for the national security and defense by encouraging the production, conserving the supply, and controlling the distribution of those ores, metals, and minerals which have formerly been largely imported, or of which there is or may be an inadequate supply.
Page 3 - Does it not seem plausible that they cause the subsequently apparent change? It does to me, but this is the extent of my own faith; we should not say the conclusion is reached and the cause of the difficulty definitely ascertained. So far as I know, the idea is an entirely new one — that bacteria cause disease in plants — though abundantly proved in the case of animals.
Page 156 - ... reasonable and as nearly as may be to cover the cost for the service rendered: Pro-vided, That certificates issued by the authorized agents of the Department shall be received in all courts of the United States as prima facie evidence of the truth of the statements therein contained $459,000.
Page 171 - Act, the act, omission, or failure of any officer, agent, or other person acting for or employed by any corporation, company, society, or association, within the scope of his employment or office, shall in every case be also deemed to be the act, omission,, or failure of such corporation, company, society, or association as well as that of the person.
Page 21 - ... There is always danger that the dust mixture may be carried by the wind to the other plats, and this difficulty makes it impossible to select trees in adjoining rows for different kinds of treatment when a dust mixture is used. For most of the experiments performed, the plats were arranged so that a part of each row of plants was included in each of the different plats. With such an arrangement there is less danger that the dust mixture may affect the results in the sprayed and the untreated...
Page 156 - Agriculture to investigate and certify to shippers the condition as to soundness of fruits and vegetables and other food products when received at important central markets.