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Innovation in Propagation of Fruit, Vegetable and Ornamental Plants
In horticulture, plant propagation plays an important role, as the number of plants can be rapidly multiplied, retaining the desirable characteristics of the mother plants, and shortening the bearing age of plants. There are two primary forms of plant propagation: sexual and asexual. In nature, the propagation of plants most often involves sexual reproduction, and this form is still used in several species. Over the years, horticulturists have developed asexual propagation methods that use vegetative plant parts. Innovation in plant propagation has supported breeding programs and allowed the production of high quality nursery plants with the same genetic characteristics of the mother plant, free of diseases or pests.
Imagining the Plains of Latin America
From the Pampas lowlands of Argentina, Uruguay and Brazil to the Altiplano plateau that stretches between Chile and Peru, the plains of Latin America have haunted the literature and culture of the continent. Bringing these landscapes into focus as a major subject of Latin American culture, this book outlines innovative new ecocritcial readings of canonical literary texts from the 19th century to the present. Tracing these natural landscapes across national borders the book develops a new transnational understanding of Hispanic culture in South America and expands the scope of the contemporary environmental humanities. Texts covered include works by: Ciro Alegría, Manoel de Barros, Ezequiel Martínez Estrada, Rómulo Gallegos, José Eustasio Rivera, João Guimarães Rosa, and Domingo Sarmiento.
Simulações em Genética de Populações e Conservação de Recursos Florestais
Este livro realiza uma abordagem conjunta muito didática dos princípios da Genética de Populações e sua aplicação na conservação de recursos naturais, com particular enfoque às populações florestais, por meio de simulações de parâmetros genéticos realizadas em softwares de uso livre. Adicionalmente, apresenta informações vinculadas à dissertação de mestrado em Engenharia Florestal do primeiro autor, em que foram realizadas simulações a partir de dados obtidos de análises com marcadores microssatélites em populações da espécie florestal Luehea divaricata Mart. et Zucc. (açoita-cavalo) no bioma Pampa. Os programas Easypop e Fstat foram empregados para estimar padrões ecológicos, genéticos e reprodutivos das populações em estudo, e, assim, permitiram sua caracterização e a proposição de estratégias para a conservação desse germoplasma.
Nogueira-pecã
Este livro apresenta uma compilação das principais doenças da nogueira-pecã diagnosticadas no Sul do Brasil. Fornece subsídios a produtores, técnicos, estudantes, professores, pesquisadores e ao público geral, para a correta identificação das doenças e o manejo dos pomares de nogueira-pecã com maior segurança, sustentabilidade e eficiência, contribuindo para o desenvolvimento da pecanicultura brasileira. A cultura da nogueira-pecã compreende um dos cultivos perenes mais antigos do Sul do Brasil, tendo se iniciado por volta de 1870, com a introdução de dezenas de cultivares oriundas dos Estados Unidos. Durante muitos anos, a pecanicultura foi a realidade de milhares de pequeno...
Micropropagation
Plant micropropagation is one of the most classical and widespread biotechnological tools used around the world. Undoubtedly, this technique brought quite important advances to our knowledge about morphological, physiological and developmental patterns of plants, to the progress of genetic breeding and to the establishment of the genetic engineering, among others. This technique is based on the in vitro farming of plant fragments in an axenic environment, where all nutrients needed are kindly provided to the cultivated plant, which is maintained under controlled temperature and light-darkness periods. Although it can be considered an established technique, several advances have been integrat...
Ciência hoje
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Cannabis
Cannabis: Evolution and Ethnobotany is a comprehensive, interdisciplinary exploration of the natural origins and early evolution of this famous plant, highlighting its historic role in the development of human societies. Cannabis has long been prized for the strong and durable fiber in its stalks, its edible and oil-rich seeds, and the psychoactive and medicinal compounds produced by its female flowers. The culturally valuable and often irreplaceable goods derived from cannabis deeply influenced the commercial, medical, ritual, and religious practices of cultures throughout the ages, and human desire for these commodities directed the evolution of the plant toward its contemporary varieties. As interest in cannabis grows and public debate over its many uses rises, this book will help us understand why humanity continues to rely on this plant and adapts it to suit our needs.
