The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd, 1908 - 369 páginas |
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... Spores 162 163 Black and Red Rust . Hessian Fly Hessian Fly on Wheat Chinch Bug Wheat Midge Wheat Plant Louse Rocky Mountain Grasshopper Grain Aphis or Green Bug Granary Weevil Grain Moth Flour Moth Transportation of Wheat on Water ...
... Spores 162 163 Black and Red Rust . Hessian Fly Hessian Fly on Wheat Chinch Bug Wheat Midge Wheat Plant Louse Rocky Mountain Grasshopper Grain Aphis or Green Bug Granary Weevil Grain Moth Flour Moth Transportation of Wheat on Water ...
Página 157
... spores , have a great capacity for spreading over the fields , but the only real danger seems to be from those spores which lodge on healthy kernels , generally in the hairy ends . Chances are slight of clean seed being infected by ...
... spores , have a great capacity for spreading over the fields , but the only real danger seems to be from those spores which lodge on healthy kernels , generally in the hairy ends . Chances are slight of clean seed being infected by ...
Página 158
... spores . As the parasite lives at the expense of its host , the latter is weakened and stunted in proportion to the amount of smut . This may be great enough to dwarf the plants so as to prevent the formation of heads , or even to cause ...
... spores . As the parasite lives at the expense of its host , the latter is weakened and stunted in proportion to the amount of smut . This may be great enough to dwarf the plants so as to prevent the formation of heads , or even to cause ...
Página 159
... spores develop a chain of cells instead of an undivided tube ; it has no fetid odor ; it attacks both kernel and chaff ; and it ripens when the healthy wheat is in flour . By harvest time the spores have all taken wings upon the wind ...
... spores develop a chain of cells instead of an undivided tube ; it has no fetid odor ; it attacks both kernel and chaff ; and it ripens when the healthy wheat is in flour . By harvest time the spores have all taken wings upon the wind ...
Página 162
... spores , but in the orange leaf - rust the red spores are far more abundant than the black ones , while in the stem - rust the black spores are the more abundant . LIFE HISTORY . - The wheat rusts belong to that type of fungi which have ...
... spores , but in the orange leaf - rust the red spores are far more abundant than the black ones , while in the stem - rust the black spores are the more abundant . LIFE HISTORY . - The wheat rusts belong to that type of fungi which have ...
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acre agriculture Amer American amount annual Argentina average baked bran bread bucket shop bushels bushels of wheat Canada cars cents per bushel century cereals Chicago chinch bug climate combined harvester commercial corn cost crop rotation cultivation durum wheat early elevators England Europe experiment station export farm farmers fertilizers flour germination gluten grower grown harvest header Hessian fly Hybrid important increased industry insects irrigation Kansas kernel land larvæ loss macaroni machine machinery manure methods miller milling Minnesota moisture nitrogen North Dakota operations Pacific coast phosphoric acid plow potash pounds practically price of wheat produced profitable railroads Red river valley Report Rept rotation Russia rust seed shipped smut soil sown speculative spores spring wheat storage straw supply threshing tion transportation United varieties weeds wheat crop wheat growing wheat plant winter wheat Yearbook U. S. Dept yield