The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryO. Judd Company, 1922 - 369 páginas |
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Página 3
... selection , and that by 1846 he had obtained a very fair sample of wheat . His results have not been supported by other conclusive experi- ments , and scientists generally have not accepted them . There was doubtless cross ...
... selection , and that by 1846 he had obtained a very fair sample of wheat . His results have not been supported by other conclusive experi- ments , and scientists generally have not accepted them . There was doubtless cross ...
Página 4
... selection is relatively a slow process DISTRIBUTION . Longitudinal . - The migration of wheat has necessarily been . closely connected with the migration of peoples , and especially with those of Europe . Consequently its general ...
... selection is relatively a slow process DISTRIBUTION . Longitudinal . - The migration of wheat has necessarily been . closely connected with the migration of peoples , and especially with those of Europe . Consequently its general ...
Página 18
... selecting soils , fertilizing and changing existing foods from unavailable to available forms , food can in a great measure be regulated , and water , acting as a solvent and vehicle , can be very largely regulated as to amount by ...
... selecting soils , fertilizing and changing existing foods from unavailable to available forms , food can in a great measure be regulated , and water , acting as a solvent and vehicle , can be very largely regulated as to amount by ...
Página 21
... selected from one spike , were planted , and the 30 grains which grew produced 1434 ounces of wheat . This was sown the next year , and produced 5 pecks of grain , which in turn produced 45 bushels the subsequent year . The 45 bushels ...
... selected from one spike , were planted , and the 30 grains which grew produced 1434 ounces of wheat . This was sown the next year , and produced 5 pecks of grain , which in turn produced 45 bushels the subsequent year . The 45 bushels ...
Página 36
... selection , hybridization and selection . Selection is an unfailing means for the modification of form and tendency in organic life . It augments the power of varia- tion by successively selecting the most marked variations in any ...
... selection , hybridization and selection . Selection is an unfailing means for the modification of form and tendency in organic life . It augments the power of varia- tion by successively selecting the most marked variations in any ...
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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