Enhancing Pinus pinea cone production by grafting in a non-native habitat

New Forests ◽  
2021 ◽  
Author(s):  
Verónica Loewe-Muñoz ◽  
Rodrigo Del Río ◽  
Claudia Delard ◽  
Mónica Balzarini
Keyword(s):  
Pinus Pinea ◽  
Cone Production ◽  
Native Habitat

scholarly journals Influence of umbrella pine (Pinus pinea L.) stand type and tree characteristics on cone production

2016 ◽  
Vol 91 (6) ◽  
pp. 1019-1030 ◽  
Author(s):  
Ana Cristina Gonçalves ◽  
Anabela Afonso ◽  
Dulce G. Pereira ◽  
Anacleto Pinheiro
Keyword(s):  
Pinus Pinea ◽  
Cone Production ◽  
Stand Type ◽  
Umbrella Pine ◽  
Tree Characteristics

scholarly journals Optimal management in Pinus pinea L. stands combining silvicultural schedules for timber and cone production

Silva Fennica ◽  
2015 ◽  
Vol 49 (3) ◽  
Author(s):  
Santiago Pereira ◽  
Antonio Prieto ◽  
Rafael Calama ◽  
Luis Diaz-Balteiro
Keyword(s):  
Pinus Pinea ◽  
Optimal Management ◽  
Cone Production

scholarly journals Selection of Pinus pinea L. plus tree candidates for cone production

2010 ◽  
Vol 67 (8) ◽  
pp. 814-814 ◽  
Author(s):  
Isabel Carrasquinho ◽  
João Freire ◽  
Abel Rodrigues ◽  
Margarida Tomé
Keyword(s):  
Pinus Pinea ◽  
Cone Production ◽  
Plus Tree ◽  
Selection Of

Modelling spatial and temporal variability in a zero-inflated variable: The case of stone pine (Pinus pinea L.) cone production

2011 ◽  
Vol 222 (3) ◽  
pp. 606-618 ◽  
Author(s):  
Rafael Calama ◽  
Sven Mutke ◽  
José Tomé ◽  
Javier Gordo ◽  
Gregorio Montero ◽  
...  
Keyword(s):  
Temporal Variability ◽  
Pinus Pinea ◽  
Spatial And Temporal Variability ◽  
Stone Pine ◽  
Cone Production

scholarly journals Enhanced tools for predicting annual stone pine (Pinus pinea L.) cone production at tree and forest scale in Inner Spain

2016 ◽  
Vol 25 (3) ◽  
pp. e079 ◽  
Author(s):  
Rafael Calama ◽  
Javier Gordo ◽  
Guillermo Madrigal ◽  
Sven Mutke ◽  
Mar Conde ◽  
...  
Keyword(s):  
Regional Differences ◽  
Floral Induction ◽  
National Forest Inventory ◽  
Pinus Pinea ◽  
Stone Pine ◽  
Data Set ◽  
New Model ◽  
Cone Production ◽  
Pine Nut ◽  
Influent Factors

Aim of the study: To present a new spatiotemporal model for Pinus pinea L. annual cone production with validity for Spanish Northen Plateau and Central Range regions. The new model aims to deal with detected deficiencies in previous models: temporal shortage, overestimation of cone production on recent years, incompatibility with data from National Forest Inventory, difficulty for upscaling and ignorance of the inhibitory process due to resource depletion.Area of study: Spanish Northern Plateau and Central Range regions, covering an area where stone pine occupies more than 90,000 haMaterial and methods: Fitting data set include 190 plots and more than 1000 trees were cone production has been annually collected from 1996 to 2014. Models were fitted independently for each region, by means of zero-inflated log normal techniques. Validation of the models was carried out over the annual series of cone production at forest scale.Results: The spatial and temporal factors influencing cone production are similar in both regions, thus the main regional differences in cone yield are related with differences in the phenological timing, the intensity of the influent factors and forest intrinsic conditions. A significant inhibition of floral induction by resource depletion was detected and included into the model. Upscaling the model results in accurate prediction at forest scale. Research highlights: [1] The new model for annual cone production surpass the detected deficiencies of previous models, accurately predicting recent decay in cone production; [2] Regional differences in cone production are due to phenological and seasonal climatic differences rather than to between provenances genetic differencesKeywords: zero-inflated models; pine nut; conelet losses; Leptoglossus occidentalis; forest upscaling. 

scholarly journals Climate Change Impacts on Pinus pinea L. Silvicultural System for Cone Production and Ways to Contour Those Impacts: A Review Complemented with Data from Permanent Plots

Forests ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 169 ◽  
Author(s):  
João A. Freire ◽  
Gonçalo C. Rodrigues ◽  
Margarida Tomé
Keyword(s):  
Climate Change ◽  
Forest Fires ◽  
Management Practices ◽  
Climate Change Impacts ◽  
Pinus Pinea ◽  
Permanent Plots ◽  
Forest Management Planning ◽  
Cone Production ◽  
Umbrella Pine ◽  
Silvicultural System

Umbrella pine (Pinus pinea L.) cones take three years to develop. With the increasing frequency of extreme droughts, water available for trees has decreased—climate change is a reality. The cone’s survival in its first two years of development and the average cone weight during its last year of maturation is affected, thus, reducing kernel quantity and quality. Climate change has resulted in forest fires becoming an inescapable issue in forest management planning. A literature review was carried out, focusing, on one hand, the predicted climatic changes for the Mediterranean basin and, on the other hand, the umbrella pine silvicultural mechanisms at tree, stand, and landscape levels that may help to face these constraints. Finally, the Portuguese case was focused, describing the management practices that are being adopted to achieve, even when the period of cone formation and growth include dry years, one to six tons of cones per hectare per year in adult stands.

scholarly journals Thinning increases cone production of stone pine (Pinus pinea L.) stands in the Northern Plateau (Spain)

2013 ◽  
Vol 70 (8) ◽  
pp. 761-768 ◽  
Author(s):  
Daniel Moreno-Fernández ◽  
Isabel Cañellas ◽  
Rafael Calama ◽  
Javier Gordo ◽  
Mariola Sánchez-González
Keyword(s):  
Pinus Pinea ◽  
Stone Pine ◽  
Cone Production

scholarly journals Potential Factors behind the Decline of Pinus pinea Nut Production in Mediterranean Pine Forests

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1167
Author(s):  
Yara El Khoury ◽  
Elise Noujeim ◽  
Giovanni Bubici ◽  
Eustachio Tarasco ◽  
Charbel Al Khoury ◽  
...  
Keyword(s):  
Climatic Factors ◽  
Mediterranean Area ◽  
Pinus Pinea ◽  
Cone Production ◽  
Pine Nut ◽  
Leptoglossus Occidentalis ◽  
Before And After ◽  
Nut Production ◽  
Potential Factors ◽  
Mediterranean Pine

Mediterranean stone pine nut is appreciated for its high economic and nutritional value. Starting in 2012, Pinus pinea nut production declined throughout the Mediterranean area. The dry cone syndrome associated with this decline and the introduction of Leptoglossus occidentalis occurred simultaneously. This study aims to evaluate potential reasons behind the decline in pine nut production in Lebanon, considering climatic factors and the invasion of L. occidentalis. Correlation analysis was used to examine a potential relationship between cone yield and the percentage of damaged seeds per cone. Climatic variables were also tested. Two time periods were considered for analysis: before and after 2012. Cone production and the percentage of damaged seeds were negatively correlated (r = −0.42). From 2012 to 2017, cone production declined by 50% and the percentage of damaged seeds increased on average from 3% in 2012 up to 60% in 2017. Correlations were detected between cone production and the temperature of the hottest three months of the year of harvesting, and between cone production and average temperatures during the year of cone initiation. A conjunction of factors that include L. occidentalis and climatic factors might have affected the pine nut production in Lebanon.

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