EFFECTS OF UV TREATMENTS ON STEM GROWTH OF SOME GREENHOUSE CROPS

B. Lercari, F. Bretzel, S. Piazza
UV treatments, lasting between 48 and 96 hours, given to plug seedlings significantly reduced stem length in tomato, petunia and marigold. The same treatments were ineffective in ageratum. The UV treatments, 50 μmol m-2 s-1, were more effective than white, 500 μmol m-2 s-1, and red, 20 μmol m-2 s-1, light treatments.
Lercari, B., Bretzel, F. and Piazza, S. (1992). EFFECTS OF UV TREATMENTS ON STEM GROWTH OF SOME GREENHOUSE CROPS. Acta Hortic. 327, 99-104
DOI: 10.17660/ActaHortic.1992.327.13
https://doi.org/10.17660/ActaHortic.1992.327.13
ageratum, marigold, petunia, tomato, growth-control