Threshold-dependent phenomena in photomorphogenic processes

De Greef, J.A.; Caubergs, R.

Archives Internationales de Physiologie et de Biochimie 82(4): 795

1974


ISSN/ISBN: 0003-9799
PMID: 4141465
Document Number: 72287
Leaf expansion in etiolated Phaseolus vulgaris seedlings needed photoinduction of the embryonic axis as well as illumination of the leaves; when these 2 treatments were separated in time, leaf expansion did not occur if the intervening dark period was >48 h.

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