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RESPONSE OF TWO VERONICA SPECIES TO A SIMULATED WOODLAND LIGHT CLIMATE
Author(s) -
FITTER A. H.,
ASHMORE C. J.
Publication year - 1974
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1974.tb01328.x
Subject(s) - shading , far red , perennial plant , woodland , canopy , botany , light intensity , biology , resistance (ecology) , adaptation (eye) , red light , horticulture , geography , forestry , ecology , art , physics , optics , visual arts , neuroscience
S ummary Two species of Veronica, V. montana and V. persica , respectively a woodland perennial and an annual weed of disturbed ground, were grown in unshaded, neutral shaded, and far‐red light. The only effect on V. montana was on root growth and was similar in shaded and far‐red treatments, but V. persica showed a far‐red specific reduction in leaf area, as well as shading effects on several other parameters. When grown in deeper shade under a leaf canopy, the growth of V. persica was drastically reduced and its developmental pattern radically altered, whilst that of V. montana was much more stable. It is suggested that the adaptation of V. montana to growth in woods involves resistance to both low light intensity and enhanced far‐red light stresses.