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  1. Flowering (1991 Video)

    Producer
    Andrew Crilly
    Subject
    Biology
    Distribution
    Sale, Videocassette. Standard formats. col. 24 min., 1998 sale: £145.00 (+VAT +p&p)

    Looks at the causes of flowering, examining factors such as day length and night length. Shows how this information is used by commercial growers of chrysanthemums. Also discusses crops such as celery where...

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