engleski

Influence of container type on growth and development of holm oak (Quercus ilex L.) seedlings in a nursery

Background and Purpose: Development of holm oak seedlings, which were grown in various containers, was observed during two years in nurseries, with the aim to state the influence of containers on the development of holm oak seedlings. Materials and Methods: Two types of containers were used: Bosnaplast 12, Bosnaplast 18 and PVC 7/24, which were filled with standard mixture of peat and earth 2:1. The measurements and analyses were done on oneyear and twoyear seedlings, successively every two months, four times for one-year old and seven times for two-year old seedlings. Variables which were examined in nursery and laboratory were: the height of the plant, upper part of root diameter, root weight, total root lenght, leaves weight, plant weight, total plant weight, relation between weight of plant and root. Results: The volume of container positively influenced the morphology of one-year and two-year old plants in nursery. The largest and best quality plants were produced in PVC containers, then in Bosnaplast 18 containers, and the smallest in Bosnaplast 12 containers. Different degree of deformation of root system was stated, depending on container type and growth duration. Conclusions: The growth of holm oak seedlingin Bosnaplast 12 and Bosnaplast 18 containers for longer than one vegetation season is not recommended, because of root deformitions, and for PVC containers not longer than one and a half to two vegetations seasons.

holm oak; nursery; containers; morphologic characteristics; growth duration

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