Preacondicionamiento de Pinus engelmannii Carr. bajo diferentes condiciones ambientales en vivero Pre-conditioning of Pinus engelmannii Carr. under different environmental conditions in a nursery

Le résumé fourni par la source

The effect of different environmental conditions during the pre-conditioning phase promotes mechanisms of drought resistance in trees after planting. During 113 days an experiment was performed with seedlings, aged seven and a half months at the beginning of evaluation. Factors evaluated were: 1) at the nursery; 2) shade mesh at 70 %; 3) shade mesh at 60 %; 4) shade mesh at 50 %; and 5) outdoors, under a totally randomized experimental design. An influence of environmental conditions on seedling growth was found; the highest seedling quality was obtained under outdoor conditions and shade mesh at 40 % and 60 %, which showed similar results in the morphological variables root collar diameter (4.53, 4.52 and 4.30 mm, respectively) and Dickson’s quality index (0.39, 0.37 and 0.36, respectively).

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.