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The small effect of relative humidity on ornamental plants


, : The small effect of relative humidity on ornamental plants. Gartneryrket 78(23): 688

At RH levels between 60 and 85% most foliage plants grow equally well, but straggly growth can occur in some species at high RH, and care is needed in feeding. Artificial light favours all but a few species. From Dec. 1987 to Mar. 1988, trials were made on 22 species at 60 and 80% RH and a constant temperature of 24 degrees C, either in natural light or with supplementary lighting of 4000 lx for 20 h/day. Data and the effects of these treatments on plant DW are tabulated.

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