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Evaluation of Regeneration Stock Alternatives for Optimization of Growth and Survival of Field-Grown Forest Trees

Journal of Life Sciences 2013年第5期7卷 507-516页

作者： Titus Fondo Ambebe Lum Ayeoffe Fontem Balgah Roland Azibo Njoya Moses Tita Mogho Department of Botany and plant Physiology Faculty of Science University ofBuea Buea Cameroon Faculty of Agriculture and Veterinary Medicine University of Buea Buea Cameroon Department of Biological Sciences Faculty of Science University ofBamenda Bamenda Cameroon

Successful reforestation depends on the use of stock material that has a high potential for growth and survival in the environment where it is out-planted. This study is aimed at raising awareness on plant traits that are useful in evaluating the reforestation potential of seedlings and cuttings. The authors reviewed relevant literature on the assessment of quality of seedlings and cuttings and on the comparison of field performance of the two stock types. Results indicated that root-collar diameter, shoot height, root mass, number of first-order lateral roots and shoot-root ratio are morphological parameters whereas root growth potential, water relations, photosynthetic capacity and dormancy status are physiological traits that could be used as a basis for rating and comparing the suitability of seedlings and cuttings for reforestation. There is a discrepancy among studies on the field performance of seedlings and cuttings. It is concluded that a combination of morphological and physiological parameters should be used in evaluating the relative value of cuttings and seedlings. In addition, the age of the parent plant of a cutting should be taken into consideration when comparing the reforestation potential of the two stock alternatives.

关键词： Cutting donor plant age reforestation seedling growth and survival.

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