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. |
From inside the book
Results 1-5 of 15
Page 166
... sporophores were growing on the exposed wood occasioned by a sawed - off branch . The specimens were collected by Mr. Roy G. Pierce of the Office of Investigations in Forest Pathology and deposited in the collections of this office ...
... sporophores were growing on the exposed wood occasioned by a sawed - off branch . The specimens were collected by Mr. Roy G. Pierce of the Office of Investigations in Forest Pathology and deposited in the collections of this office ...
Page 167
... sporophores of this or other wood - destroying fungi . On the side of the ivy stem away from the trunk , two good sized sporophores were borne close together on what appeared to have once been a longitudinal crack . The greater part of ...
... sporophores of this or other wood - destroying fungi . On the side of the ivy stem away from the trunk , two good sized sporophores were borne close together on what appeared to have once been a longitudinal crack . The greater part of ...
Page 198
... sporophores have been available for study during the progress of the investigation . Sporo- phores of the fungus , and both healthy and diseased host plants have been imbedded in paraffin and studied in serial section . The material was ...
... sporophores have been available for study during the progress of the investigation . Sporo- phores of the fungus , and both healthy and diseased host plants have been imbedded in paraffin and studied in serial section . The material was ...
Page 199
... sporophores though described as occurring on living moss , arise in reality from saprophytic mycelium . The results of the present investigation leave no doubt , however , of the actual parasi- tism of the species . Acknowledgments ...
... sporophores though described as occurring on living moss , arise in reality from saprophytic mycelium . The results of the present investigation leave no doubt , however , of the actual parasi- tism of the species . Acknowledgments ...
Page 200
... sporophores of the fungus are advancing toward maturity . A microscopic examination of stained sections of diseased plants not only gives conclusive corroborative evidence of the parasitism of the fungus but also discloses the fact that ...
... sporophores of the fungus are advancing toward maturity . A microscopic examination of stained sections of diseased plants not only gives conclusive corroborative evidence of the parasitism of the fungus but also discloses the fact that ...
Contents
298 | |
305 | |
353 | |
360 | |
365 | |
372 | |
373 | |
379 | |
98 | |
106 | |
114 | |
137 | |
155 | |
168 | |
175 | |
190 | |
197 | |
219 | |
229 | |
240 | |
247 | |
257 | |
270 | |
283 | |
443 | |
449 | |
455 | |
457 | |
469 | |
501 | |
507 | |
530 | |
550 | |
557 | |
572 | |
584 | |
615 | |
621 | |
Other editions - View all
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.