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Proceedings of the International Plant Propagator's Society

Vol. 29

Title:
ROOT AND SHOOT GROWTH RATE RELATIONSHIPS OF TWO JAPANESE HOLLY CULTIVARS DURING PROPAGATION

Author:
William Mertens

pp: 414-418

Abstract:
Cuttings of Ilex crenata Thumb. ‘Helleri’ and ‘Rotundifolia’ were rooted and grown in polyvinyl chloride pipe sections from which longitudinal sections could be removed for root observations. Plants were fertilized at either 150 or 300 ppm N with a 20N–8.7P–16.5K soluble fertilizer. Rate of root and shoot growth was determined through 2 to 3 flushes of growth following rooting by taking weekly measurements of shoots and roots. Root growth of both cultivars usually preceded a shoot growth flush by 1 to 2 weeks. This growth pattern was observed at booth fertility levels.

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