The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryOrange Judd Company, 1919 - 369 páginas |
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... Spores 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 Typical ...
... Spores 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 Typical ...
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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