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Biological Corridors as a Connectivity Tool in the Region of the Great American Chaco:Identification of Biodiversity Hotspots in the Ecoregions of the Paraguayan Chaco

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Research in Ecology 2020年第1期2卷 27-36页

作者： María Fátima Mereles Gloria Céspedes JoséLuís Cartes Rosalía Goerzen JuanaDe Egea-Elsam laura Rodríguez Alberto Yanosky laura villalba Andrea Weiler Pier Cacciali Centro para el Desarrollo de la Investigación Científica(CEDIC) Asunción-Paraguay y Programa Nacional de Incentivo a Investigadores(PRONII-CONACYT) Asociación Etnobotánica Paraguaya(AEPY) San Lorenzo-Paraguay y Programa Nacional de Incentivo a Investigadores(PRONII-CONACYT) Asociación Guyra-Paraguay y Programa Nacional de Incentivo a Investigadores(PRONII-CONACYT) Cooperativa Fernheim FiladelfiaChaco Fundación Moisés Bertoni Universidad Nacional de Asunción Facultad de Ciencias Exactas y NaturalesDirección de Biología

This work presents the main biodiversity hotspots existing in the Paraguayan Chaco and is an update of the results obtained in the first Ecoregional Assessment of the Great American *** are the results of a series of workshops that included scientific and technical discussions carried out by local experts in zoology,botany,forestry,soil science,and hydrogeology applying a biodiversity vision of 25-30 years for the territory,after overlapping the maps of the first assessment with that of the advance of the changes of land use in the *** for detecting biodiversity hotspots were discussed,including:permanent and temporary watercourses,other bodies of water such as fresh and salty lagoons,reserve areas of different categories,as well as important bird areas(IBAs),RAMSAR areas and others,which must be connected in the future,combining the production areas with the conservation of biodiversity.

关键词： Conservation Fauna Flora Endemic species Sustainable use

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Influence of Colletotrichum truncatum on the Physiological and Chemical Quality in Different Varieties of Soy Seed

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Agricultural Sciences 2023年第10期14卷 1393-1404页

作者： Lucas Pérez laura Garay Farías Oscar René Silvero Ever Maidana Alcides villalba Gabriela Perdomo Patricia Rojas Facultad de Ciencias Agronómicas Universidad Nacional de Canideyú Canindeyú Paraguay Semillas Criciuma Canindeyú Paraguay Facultad de Ingeniería Agronómica Universidad Nacional del Este Alto Paraná Paraguay

The literature highlights that a severe infection by the fungus Colletotrichum truncatum may be capable of inflicting considerable damage to seeds after harvest, potentially affecting their chemical composition and physiological quality. Taking into account that currently there is no categorization in terms of susceptibility and tolerance on this pathogen, the present work is presented with the main objective of “Evaluate the influence of Pathogenicity of C. truncatum on the physiological quality (germination, vigor, viability) and biochemical components in different varieties of soybean seeds (Glycine max)” most planted in the region. The work was carried out in the Agrotec laboratory, located in the Municipality of San Alberto (Alto Paraná), using a completely randomized experimental design, with AxB factorial arrangement, where A indicates ten most planted soybean varieties in the region and B with or without artificial inoculation of Colletotrichum truncatum, with twenty treatments and four repetitions. The variables evaluated were: germination, vigor, viability and chemical composition. The data were subjected to analysis of variance and the Tukey test at 5% error. The results showed a significant statistical difference, accepting the alternative hypothesis proposed “The pathogenicity of Colletotrichum truncatum influences the physiological quality (germination, vigor, viability) and biochemical components (saturated and unsaturated fatty acids) in different varieties of soybean seeds (Glycine max)”.

关键词： Colletotrichum truncatum Physiological Quality Chemical Composition Soybean Varieties (Glycine max)

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