 ... one which must be reproduced by seed; but even in breeding perennials, the first deviations from the original form are often almost unappreciable to the perception, but by accumulating the most minute differences through many generations the deviation...  Experiment Station Record - Página 212por United States. Office of Experiment Stations - 1903Visualização integral - Acerca deste livro
 | Jamaica. Department of Agriculture - 1903 - 144 páginas
...inherent and external forces which he would control. A plant breeder before attempting to make nev? combinations should select with great care the individual...permanent, and there appears to be no limit to the improvment of plants. Cultivation and care may help plants temporarily, but by breeding, plants may... | |
 | Minnesota State Horticultural Society - 1903 - 556 páginas
...operated upon. This applies more particularly to animals or those plants generally produced by us. In breeding perennials the first deviations from the...which will do better work in all places and for all places and for all times." Prof. Hays says : "In any hybridization work a good foundation stock must... | |
 | Frederick Converse Beach, George Edwin Rines - 1903 - 1074 páginas
...differences through many generations the deviation from the original form is often astounding. Thus, by careful and intelligent breeding any peculiarity may be made permanent, and valid new species are at times produced by the art of the breeder, and there is no known limit to the... | |
 | Horticultural Society of New York - 1904 - 468 páginas
...differences through many generations the deviation from the original form is often astounding. Thus by careful and intelligent breeding any peculiarity may be made permanent, and valid new species are at times produced by the art of the breeder, and there is no known limit to the... | |
 | Frederick Converse Beach - 1904 - 862 páginas
...differences through many generations the deviation from the original form is often astounding. Thus, by careful and intelligent breeding any peculiarity may be made permanent, and valid new species are at times produced by the art of the breeder, and there is no known limit to the... | |
 | 1904 - 296 páginas
...differences through many generations the deviation from the original form is often astounding. Thus by careful and intelligent breeding any peculiarity may be made permanent, and valid new species are at times produced by the art of the breeder, and there is no known limit to the... | |
 | 1919 - 978 páginas
...differences through many generations the deviation from the original form is often astounding. Thus by careful and intelligent breeding any peculiarity may be made permanent and valid new species are at times produced by the art of the breeder and there is no known limit to the... | |
 | 1903 - 476 páginas
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