J.of Soc of Agri Struc, Japan.
Vol.26,No.1 June 1995,13-20
Original:
Language: Japanese

Effect of Low Temperature Treatments on the Flower-bud Initiation of Strawberry Grown in NFT

Keo INTABON, Masao KINOSHITA and Takaaki MAEKAWA

ABSTRACT

    To promote the flower-bud initiation in young strawberry seedlings(Fragaria X ananassa Duch. cv. Nyoho), tap water, chilled to 10 - 15 centigrade, was supplied to the roots for 20 - 30 days in the NFT system before planting to the growing beds. The results obtained are as follows: (1)The 20 day treatment successfully promoted the bud initiation, still with a fairly high level of NO3-N, and better crop growth until the final planting. (2)An earlier flowering was promoted for the termal flower cluster by the 20 day treatment, but on the contrary, the 30 day treatment brought about a flowering delay. However, 30 day treatment created simultaneous flowering for the termal flowers. (3)The 30 day treatment also made the flowering of the axillary flowers short, and offered simultaneous flowering to the whole crop, respectively.

Keywords: strawberry seedling, chilled water treatment, roots, flower-bud initiation, termal flower, axillary flower, growth, flowering

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