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The Development of Juvenile and Adult English Ivy When Grown Alone and Together in Solution Culture


Cuttings of juvenile and mature English ivy (Hedera helix L.) were rooted and grown in a solution culture system, both alone and in combination. No reversion of the mature form to the juvenile form occurred when mature and juvenile cuttings were grown together, but reversion occurred in 4.2% of mature cuttings grown alone. Of mature cuttings, 73% of those grown alone and 50% grown with juvenile cuttings rooted and were growing at the end of 6 months. Shoot growth generally preceded root growth in mature cuttings.