Effects of forest fire ash on germination and early growth of four pinus species

  title={Effects of forest fire ash on germination and early growth of four pinus species},
  author={Otilia Reyes and Mercedes Casal},
  journal={Plant Ecology},
Fire modifies the germination of seeds of numerous species. One of the fire factors that cause these modifications is the ash. This study analysed the germination of seeds of Pinus sylvestris L., Pinus nigra Arn. Pinus radiata D. Don and Pinus pinaster Aiton, subjected to different ash treatments, and the development of seedlings that grew in these conditions for 14 weeks. We obtained the ash by completely burning leaves and small twigs from the most abundant woody species in populations of… 
Germination Patterns of Soil Seed Banks in Relation to Fire in Portuguese Littoral Pine Forest Vegetation
Results suggest that pioneer seeder behavior is largely promoted by wildfires that are, in turn, detrimental to slow-growing, late-sucessional tall shrubs and forest fire hazard risk management can be put into perspective.
The Effects of Ash and Black Carbon (Biochar) on Germination of Different Tree Species
In six species, ash inhibited the germination, while in another five species, germination was not affected by ash or by BC, which is likely to be related to the chemical composition of the ash and BC obtained from Ulex feedstock.
Smouldering fire-induced changes in a Mediterranean soil (SE Spain): effects on germination, survival and morphological traits of 3-year-old Pinus pinaster Ait.
A smouldering fire was reproduced in a substrate from a Pinus pinaster forest in the southeastern Iberian Peninsula, confirming the observed lesser P. pinaster recruitment in burnt stands in southeastern Spain.
Fire severity as a key factor in post-fire regeneration of Pinus pinaster (Ait.) in Central Portugal
ContextMediterranean pine woodlands are strongly affected by wildfires; however, there are knowledge gaps in the role of fire severity on Pinus pinaster Ait. regeneration.ObjectivesThe principal


Effect of high temperatures and ash on germination of ten species from gorse shrubland
The range of reaction shown by the species of this family suggest that the size of the seeds is directly related to the difference in response, at least in species with a similar structure, as well as complex interactions between various dormancy types and seed size.
Effects of high temperatures, ash and seed position in the inflorescence on the germination of three Spanish grasses
. Seed germination of three perennial grasses, Agrostis curtisii, Avenula marginata and Pseudarrhenatherum longifolium was studied in relation to the position (basal, intermediate, apical) in the
The influence of population, fire and time of dissemination on the germination of Betula pendula seeds
Significant differences have been found in the germination percentages of the seeds from the different populations and also from the three samplings, however, the tested effects of fire: heat, ash and their joint effect did not significantly affect the Germination percentage of this species.
Effects of high temperatures on germination ofPinus halepensis Mill. andP. pinaster Aiton subsp.pinaster seeds in southeast Spain
Seeds ofPinus halepensis andPinus pinaster subsp.pinaster were subjected to four heat treatments (90, 110, 150 and 200 °C) for 1 and 5 min to investigate their tolerances to high temperatures
Spatial pattern of seedlings 1 year after fire in a Mediterranean pine forest
It is suggested that variation in the heat of the fire, in the amount of ash between burned pine trees of different sizes, and in the distance from the burned canopy are responsible for the observed pattern of seedling distribution.
Vegetation succession after fire in sclerophyll woodland communities in south‐eastern Australia
The regeneration of the communities studied, as well as the post-fire recovery of numerous different communities reported in the literature, closely resembled an initial floristic composition model.
It is concluded that these postfire obligate resprouters require long fire-free periods for successful reproduction and potential population expansion.
The effects of light, temperature and osmotic stress on the germination of Pinus halepensis and P. brutia seeds
Experiments under daily alternating conditions of light and temperature resembling those which are naturally met, lead to the conclusion that field germination is feasible throughout the rainy season of the mediterranean-type climate and is strongly favoured in open, sunny sites.