Growth and Flowering Responses of Lilium longiflorum Thunb. ‘Ace’ to Different Day lengths1

T. C. Weiler, R. W. Langhans

Journal of the American Society for Horticultural Science · 1972 · 11 citations · 0 references

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Abstract

Abstract As the length of day was increased, the amount of cold required for flowering of ‘Ace’ plants decreased. However, even with 24 hr of light, some cold treatment was needed for flowering.