Abstract
In the Cabezona var. naphthaleneacetic acid (NA) could induce flowering in every month of the year. Application of amts. of NA as small as 0.05 mg. per plant were capable of inducing flowers in a limited number of plants; 0.25 mg. per plant caused 100% flowering. The fruit wt. depends upon the size of the plant, and the correlation between the number of leaves of a plant and the fruit it produces was detd. Based on these data, a method was outlined which makes fruit production in pineapples possible throughout the year without the loss of fruit wt. now experienced by commercial growers when they force plants into flower out of season. Preliminary expts. indicate that artificial long-day conditions prevent natural flowering but not NA-induced flowering.