Biblioteca Digital

3 resultados para Germination and vigor of seeds

em Biodiversity Heritage Library, United States

Heterosis : a record of researches directed toward explaining and utilizing the vigor of hybrids / edited by John W. Gowen.

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Inventory of seeds and plants imported / U.S. Department of Agriculture, Bureau of Plant Industry.

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48-61, 1921-1922

Inventory of seeds and plants imported / U.S. Department of Agriculture, Bureau of Plant Industry.

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37-47