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phototropic reaction

Listing 1 - 2 from 2 for phototropic reaction

Botany online: Growth Movements - Phototropism
... reaction (threshold value), and an increase in light intensity does not always cause an increase in the phototropic reaction, but may in contrast suppress the positive reaction. A continuous increase causes a second positive reaction ...
www.biologie.uni-hamburg.de

Quercus laevis Walt
... as the surface sand dries out. Roots from separate trees will graft together (21,22). Reaction to Competition- The effects of logging are favorable to turkey oak which is classed as ... of the acorns with subsequent germination before adverse conditions of summer; vertical leaf orientation, a phototropic response, which may act as a protective mechanism against intense light and high temperature; and ...
www.na.fs.fed.us