Carlos J. Ceacero

Universidad Pablo de Olavide | UPO · Department of Physiology, Anatomy and Cellular Biology

Boron (B) is an essential element for an adequate development of citrus orchards. However, citrus trees are vulnerable to high B concentrations, generating morphological and physiological alterations incompatible with the proper production of citrus. In this sense, citrus rootstocks can provide valuable capabilities to citrus trees including tolera...

Boron (B) toxicity is an important stress that negatively affects maize yield and quality production. The excessive B content in agricultural lands is a growing problem due to the increase in arid and semi-arid areas because of climate change. Recently, two Peruvian maize landraces, Sama and Pachía, were physiologically characterized based on their...

Boron (B) toxicity is a major agricultural problem that causes a considerable decrease in crop yield and quality. The soil in arid and semi-arid areas is often subjected to excessive B content. Southwestern Perú (department of Tacna) is characterized by high B levels in its agricultural land and irrigation water. This work analyzes the response of...

El boro (B) es un nutriente esencial para un adecuado desarrollo de las plantas. En regiones áridas o semiáridas es frecuente encontrar suelos con elevado contenido de B. Este exceso de B desencadena problemas importantes de toxicidad en las plantas, que conducen a una reducción de su crecimiento y a una disminución de la fotosíntesis, entre otros...

Calcium (Ca) is an easily available element in nature, nevertheless Ca deficiency may occur in soils with low base saturation or high acid content. Calcium cations (Ca²⁺) are taken up passively from the soil by roots and transported to the shoot through the xylem in a transpiration rate–dependent process, the long-distance transport of Ca²⁺ being p...

We explored the usefulness of LiDAR for modelling and mapping the stand biomass of two conifer species in southern Spain. We used three different plot sizes and two statistical approaches (i.e. stepwise selection and genetic algorithm selection) in combination with multiple linear regression models to estimate biomass. 43 predictor variables derive...

Foresters frequently lack sufficient information about thinning intensity effects to optimize semi-natural forest management and their effects and interaction with climate are still poorly understood. In an Abies pinsapo-Pinus pinaster-Pinus sylvestris forest with three thinning intensities, a dendrochronologial approach was used to evaluate the sh...

European policies can be relevant to protect soils under climate change scenarios and therefore preserve the wide variety of functions and services provided by the soil. The European Thematic Strategy for Soil Protection will require Member States to identify areas under risk from various soil threats and establish procedures to achieve sustainabil...

Weed control is a key aspect affecting seedling response in newly-established plantations. Tree shelter protection may be an effective complement to weed control with a positive effect on the overall response of seedlings. Our study focused on assessing the morpho-physiological response of Holm oak (Quercus ilex L. ballota [Desf.] Samp.) plantation...

Cedrela odorata and C. fissilis are two tropical tree species that have been widely harvested for their timber. In response to this heavy exploitation, the species have been listed in Appendix III of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). The aim of this study was to provide important elements n...

Restoration of vegetation in Mediterranean areas is limited by several factors, some of which are poorly understood, such as soil stoniness and competition with natural vegetation. This paper analyzes the interaction between weed management treatments (cultivation, herbicide, mulch and tree shelter) and the profile stoniness in Holm oak (Quercus il...

Chlorophyll a fluorescence has been applied to study the evolution of leaf photoprotection processes to dissipate excess absorbed energy that can not be fully utilized in photochemical reactions, and reflects the plants ability to adapt to environmental conditions. Plants environmental conditions can be modified by forest restoration techniques to...

There is a need for a better understanding of the primary role of macronutrients in Aleppo pine stock quality and for producing larger nutrient-loaded stock, which may be challenging for inland nurseries. The influence of nursery location and fertilization on nursery culture, growth, allometry and seedling quality of Aleppo pine was studied in seed...

Holm oak is the hardwood most used for reforestation in Mediterranean Spain, which makes the development of stock quality standards in order to improve establishment success, a priority. However, its nursery culture is characterized by a wide range of practices resulting in stock heterogeneity and a potentially varied outplanting performance. Previ...

Weed control is essential for a successful establishment and growth of tree seedlings in former agricultural land. Weed control methods are effective but can be costly in terms of time, damage to non-target vegetation, or increased soil erosion. Alternatively, some living mulches can exclude undesirable vegetation, protect the soil, compete minimal...

The diversification of reforestations through new non traditional shrubland species as those from Mediterranean maquia, have led to an uncertainty of performance due to the lack of seedling standards for those species and field performance patterns. Any improvement program on seedling quality and establishment needs to begin with an evaluation of c...