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Full-Text Articles in Life Sciences
Distribution Of Foliar Applied P-32 From The Leaves Of Soybean At Various Ages, George E. Ahlgren, Theodore W. Sudia
Distribution Of Foliar Applied P-32 From The Leaves Of Soybean At Various Ages, George E. Ahlgren, Theodore W. Sudia
Journal of the Minnesota Academy of Science
Transport patterns of phosphorus-32 from the cotyledons, primary leaves and the first five trifoliate leaves of soybean were determined at various ages of these organs. The transport patterns studied indicate the same general pattern for each leaf. There is initially a bidirectional movement from the leaf that increases in its upward component as the leaf becomes older, followed by a sharp drop in the upward component and P'" transport becoming essentially unidirectional downward in the stem. At fruit development, phosphorus-32 transport becomes quite specific for fruit at the axil of a particular leaf. Contiguity to sites of high metabolic activity …
Cytoplasmic Male Sterility And Intergrafts Between Lycopersicon Esculentum And Solanum Pennellii Corr., W. R. Andersen
Cytoplasmic Male Sterility And Intergrafts Between Lycopersicon Esculentum And Solanum Pennellii Corr., W. R. Andersen
Journal of the Minnesota Academy of Science
Attempts to transmit cytoplasmic male sterility through intergrafts between Lycopersicon esculenfum and Solanum pennellii have been unsuccessful. This implies that in these materials, the factor conditioning cytoplasmic male sterility is noninfective. The results of this study and other similar studies by other workers suggest the possibility that grafting might be used as a tool in the classification of cytoplasmic factors affecting mole sterility in plants.
The Wild Celery Of Christmas Lake, Hibbert Hill
The Wild Celery Of Christmas Lake, Hibbert Hill
Journal of the Minnesota Academy of Science
The growth and reproduction of Vallisneria as seen and photographed below water in Christmas Lake, Hennepin County, Minnesota, is described. The functions of the water surface film, of wave energy, and of the coiled stem of the pistillate flower, in fertilization is discussed. It is found that many of the plants grow in such depths that fertilization is impossible.