The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd Company, 1922 - 369 páginas |
Dentro del libro
Resultados 6-10 de 66
Página 26
... Usually such fluctuations in weight do not exceed 6 per cent , but they may be as much as 25 per cent , and an in- crease of 9 per cent in 24 hours has been observed . When wheat is shipped , especially if it is transported long ...
... Usually such fluctuations in weight do not exceed 6 per cent , but they may be as much as 25 per cent , and an in- crease of 9 per cent in 24 hours has been observed . When wheat is shipped , especially if it is transported long ...
Página 31
... usually the farmer was left to work out his own salvation . This he did , and successfully , though it required centuries of time . He no longer relies for information upon the elucida- tions of subtle shamans revealing the will of ...
... usually the farmer was left to work out his own salvation . This he did , and successfully , though it required centuries of time . He no longer relies for information upon the elucida- tions of subtle shamans revealing the will of ...
Página 38
... usually followed in selection were 2 CROSSING AS A CAUSE OF VARIATION : Yield in grain of 100 plants , showing greater variation in yield of hybrid than of parents . Yield of hybrid shown by x line . ( After Hays . ) utilized by Lyon ...
... usually followed in selection were 2 CROSSING AS A CAUSE OF VARIATION : Yield in grain of 100 plants , showing greater variation in yield of hybrid than of parents . Yield of hybrid shown by x line . ( After Hays . ) utilized by Lyon ...
Página 40
... , and it would seem that it could readily find its way to adjacent flowers . Possibly the stigma is usually not receptive to foreign pollen . In artificial cross - fertilization , self - fertilization must 40 THE BOOK OF WHEAT.
... , and it would seem that it could readily find its way to adjacent flowers . Possibly the stigma is usually not receptive to foreign pollen . In artificial cross - fertilization , self - fertilization must 40 THE BOOK OF WHEAT.
Página 41
... usually in one or two days . Pol- len brought from the variety chosen for the male parent is then inserted into the emasculated florets , and the cross- pollinated spike is again wrapped to exclude other pollen and to afford protection ...
... usually in one or two days . Pol- len brought from the variety chosen for the male parent is then inserted into the emasculated florets , and the cross- pollinated spike is again wrapped to exclude other pollen and to afford protection ...
Contenido
1 | |
29 | |
47 | |
58 | |
73 | |
100 | |
108 | |
109 | |
237 | |
239 | |
246 | |
303 | |
321 | |
326 | |
359 | |
360 | |
148 | |
170 | |
188 | |
201 | |
214 | |
361 | |
363 | |
364 | |
365 | |
Otras ediciones - Ver todas
Términos y frases comunes
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 factor farm farmers fertilizers field 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 operation Pacific coast phosphoric acid plow potash pounds practically produced profitable railroads raised 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