The Book of Wheat: An Economic History and Practical Manual of the Wheat IndustryOrange Judd Company, 1919 - 369 páginas |
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Página 1
... 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 2
... 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 direction ...
... 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 direction ...
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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