Seed germination according to crown position and maturation year of Pinus pinaster Ait. closed-cones from Teleno Mountains(León, Northwest Spain)

  • C. Molina Universidad Politécnica de Madrid
  • R. Tapias Universidad Politécnica de Madrid
  • L. Gil Universidad Politécnica de Madrid
Keywords: Closed-cones, Pinus pinaster, fire adaptation, dormancy

Abstract

Pinus pinaster Ait. from Teleno mountains (NW Spain) has closed-cones. This character has been extensively studied in other pines due to its meaning as a fire adaptative strategy. This paper analyses seed innate dormancy of this pine population. The results indicate that south exposed seeds germinate faster than north or top-crown located seeds. Seed germination rates are correlated to mean daily maximum summer temperature in maturation year. On the contrary, different summer temperatures does not correspond to different percentage of seed viability. We interpret the germination-maturation temperature relation as an efficient mechanism to diversify the length of seed innate dormancy and, in this way, to get an extended germination in time.

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Published
1997-12-01
How to Cite
MolinaC., TapiasR., & GilL. (1997). Seed germination according to crown position and maturation year of Pinus pinaster Ait. closed-cones from Teleno Mountains(León, Northwest Spain). Forest Systems, 6(1), 53-65. https://doi.org/10.5424/574
Section
Research Articles