Search results for "Geta"
showing 10 items of 3789 documents
Review on Physiological Effects of Vermicomposts on Plants
2020
Vermicompost is a type of organic fertilizer produced by earthworms and their symbiotic microorganisms. In addition to nutrient-rich organic fraction, vermicomposts also contain plant-available soluble minerals as well as substances with plant growth-regulating activity. In order to promote understanding on beneficial effects of vermicompost in different farming systems, the aim of the present review is to analyze possible mechanisms of vermicompost action on plants. After overview of plant growth-affecting activity of vermicomposts at the level of seed germination and vegetative growth, detailed analysis is dedicated to physiological effects associated with mineral nutrition: changes in bo…
FIRElinks. Fire in the Earth System: Science & Society
2020
FIRElinks is a EU-spanning network of scientists and practitioners involved in forest fire research and land management with backgrounds such as fire dynamics, fire risk management, fire effects on vegetation, fauna, soil and water, and socio-economic, historical, geographical, political perception and land management approaches. FIRElinks connect communities from different scientific and geographic backgrounds, allowing the discussion of different experiences and the emergence of new approaches to fire research. The main aim of FIRElinks is to power synergistic collaborations between European research groups and stakeholders with the objective to synthesise the existing knowledge and exper…
Determinazione del profilo di velocità e di intensità della turbolenza in canali vegetati
2008
In questa memoria i profili sperimentali della velocità longitudinale misurati in un canale rettilineo di laboratorio con vegetazione sommersa flessibile sul fondo, vengono utilizzati per testare l’applicabilità della legge tangente iperbolica, in genere utilizzata per interpretare il profilo di velocità nello strato di mescolamento (mixing layer). L’adattamento del profilo tangente iperbolica, sia a tutte le distribuzioni sperimentali di velocità presentate in questo lavoro che a quelle misurate da Ghisalberti & Nepf (2002) in differenti condizioni idrodinamiche, ha consentito di localizzare sempre il punto di flesso del profilo ad una distanza prossima all'altezza della vegetazione infles…
Vite: allarme per i cancri da Botryosphaera
2011
Characterization of the surface emissivity and temperature at heterogeneous sites for different zenith viewing angles using remote sensing
2020
Para estimar con precisión la temperatura de la superficie terrestre (TST) es necesario conocer con exactitud la emisividad de dicha superficie. Sobre zonas vegetadas, la estimación de la emisividad es más compleja debido a las reflexiones múltiples de la radiación (emitida y reflejada) entre los distintos elementos que forman la vegetación (suelo y elementos de la planta). En la literatura pueden encontrarse diversos métodos que modelan la emisividad de la vegetación. En este trabajo, se ha profundizado en el análisis y evaluación de los modelos de transferencia radiativa (MTR) para la obtención de la emisividad direccional de la vegetación. Los modelos utilizados para este estudio han sid…
Analyse spectrale et texturale de données à haute résolution pour la détection automatique des maladies de la vigne
2019
‘Flavescence dorée’ is a contagious and incurable disease present on the vine leaves. In order to contain the infection, the regulations require growers to control each of the vine rows and to remove the suspect vine plants. This monitoring is done on foot during the harvest and mobilizes many people during a strategic period for viticulture. In order to solve this problem, the DAMAV project (Automatic detection of Vine Diseases) aims to develop a solution for automated detection of vine diseases using a micro-drone. The goal is to offer a turnkey solution for wine growers. This tool will allow the search for potential foci, and then more generally any type of vine diseases detectable on th…
Carbohydrates in plant immunity and plant protection: roles and potential application as foliar sprays.
2014
International audience; Increasing interest is devoted to carbohydrates for their roles in plant immunity. Some of them are elicitors of plant defenses whereas other ones act as signaling molecules in a manner similar to phytohormones. This review first describes the main classes of carbohydrates associated to plant immunity, their role and mode of action. More precisely, the state of the art about perception of "PAMP, MAMP, and DAMP (Pathogen-, Microbe-, Damage-Associated Molecular Patterns) type" oligosaccharides is presented and examples of induced defense events are provided. A particular attention is paid to the structure/activity relationships of these compounds. The role of sugars as…
Estudio integral de humedales altoandinos (andean peatlands) con Teledetección y SIG
2022
La Reserva de Producción de Fauna Chimborazo (RPFCH) es un ecosistema de alto valor situado en los andes ecuatorianos, ocupado en su mayor parte por turberas, también llamados bofedales o peatlands. El objetivo de esta tesis es el estudio de dichos ecosistemas a partir de una extensa base de datos de campo obtenida en 2016 y usando datos de teledetección óptica y radar y variables topográficas, ambientales y climáticas con SIG. Para ello se analizaron los mejores métodos para el cartografiado de los peatlands en la RPFCH, la estimación del carbono bajo el suelo (COS) en la capa 0-30 cm y la estimación del carbono almacenado en la vegetación calculado a partir de la biomasa. Como resultado s…
Flora, fitocenosi e serie di vegetazione nel paesaggio vegetale dei Monti di Palermo (Sicilia nord-occidentale)
Multiple sediment proxies from Jaraguá cave, Brazil
2019
Multiple paleoclimate, paleovegetation and paleoenvironmental records from Jaraguá cave, located at center of South America. In this dataset that covers the last 28,000 year is included δ13C and δ18O values and 87Sr/86Sr ratios in stalagmites combined with XRF-derived elemental chemistry, δ13Corg, total organic carbon and total inorganic carbon (carbonate) in a sedimentary profile from the same cave.