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Proceedings of the International Plant Propagator's Society

Vol. 44

Title:
The Importance of Selection and Root Pruning in Container-Grown Seedling Production of Ornamental Trees and Shrubs

Author:
Ian G. McCure

pp: 121-124

Abstract:
The purpose of this paper is to raise some very important factors which are sometimes overlooked by nursery growers in the raising of tubestock from seed. Certainly many factors are involved in successful production, not the least of which are selection and root pruning in the development of reliable nursery stock. Occasionally in our nursery we come across a plant or a group of plants that stay alive, but do not grow on to a marketable size. In order to ascertain what is wrong the following factors need to be considered:

  • The plant origin—50-mm tubestock from a reliable source
  • The potting mix used—moisture and nutrient levels
  • Problems associated with pests and diseases
  • Environmental conditions

In this case everything appears to be satisfactory. The potting mix drains well, there is adequate moisture and nutrient levels, and there is no sign of stem rot or problems with insect pests. The leaves have a slight yellowing but are generally healthy. It's winter time in Queensland, with

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