Seasonal Growth Periodicity of Tissue Explants from Woody Perennial Plants in vitro

Science  27 Mar 1959:
Vol. 129, Issue 3352, pp. 836-837
DOI: 10.1126/science.129.3352.836


Secondary phloem explants removed to standard aseptic culture in the spring proliferate most extensively. Explants taken successively through the growing season proliferate less. The decreasomg growth trend reverses some months before bud break, and the increasing growth in winter is not dependent on the breaking of dormancy in the terminal buds.