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Monitorização intensiva do crescimento anual em pinheiro manso (Pinus pinea L.) sujeito a diferentes tratamentos
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Autores
Orientador(es)
Resumo(s)
Stone pine (Pinus pinea) has been increasing its importance in the Portuguese national forest
sector, due to the high value of its pine nuts. A better understanding of the growth process
from tree structures namely twigs, leaves and cones is the main objective of this study. The
study was conducted in grafted umbrella pine trees subjected to four treatments: control,
irrigation, fertigation and fertilization, two accompanied with higher intensity (control and
fertigation). The growth in length and diameter of the twigs, needles growth, litter fall, and
biomass allocation, were intensely monitored monthly between April and December. Leaf
water potential, soil moisture were monitored to evaluate the impact of summer drought
stress.
There were clear indications of the periods with highest growth rates in tree structures: twigs
during spring until May and cones until June. Leaves appear in May and grow until October.
Effect from fertigation was only important in needles growth and litter fall rate. The late start
of the treatment application might explain the lack of response from other tree structures
Descrição
Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia
Palavras-chave
Pinus pinea umbrella pine pine cone pine nut fertigation growth
Contexto Educativo
Citação
Silva, J.E.P. - Monitorização intensiva do crescimento anual em pinheiro manso (Pinus pinea L.) sujeito a diferentes tratamentos. Lisboa: ISA, 2015, 55 p.