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Previous issue date: 2008 / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG)) / Syngonanthus elegantulus Ruhland (vargeira) e Syngonanthus elegans (Bong.) Ruhland (p?-de-ouro) s?o as sempre-vivas mais exploradas comercialmente na regi?o de Diamantina. O extrativismo dessas constitui importante fonte de renda para muitas fam?lias do Vale do Jequitinhonha. As ?reas de ocorr?ncia dessas esp?cies v?m diminuindo drasticamente devido ? excessiva press?o de coleta e o manejo com o fogo, que ? ateado ap?s as primeiras chuvas (set/out), sendo utilizado com freq??ncia visando o incremento na produ??o de infloresc?ncias. Segundo os coletores no ano em que n?o se coloca o fogo, a produ??o de cap?tulos na safra subseq?ente ? reduzida. A interfer?ncia da cobertura vegetal na penetra??o da luz ? um aspecto importante no manejo das esp?cies. No manejo das sempre-vivas, o fogo pode atuar eliminando o sombreamento causado por outras esp?cies que ocorrem associadas a elas e, portanto, alterar a penetra??o de luz, interferindo na germina??o das sementes, desenvolvimento vegetativo e na produ??o de infloresc?ncias. Informa??es sobre as respostas das plantas a condi??es distintas de luz s?o de grande import?ncia para determinar seu potencial de produ??o e entender a sua capacidade competitiva sob diferentes condi??es de manejo. Objetivou-se estudar o comportamento fisiol?gico e anat?mico de S. elegans e S. elegantulus cultivadas em vasos, sob dois n?veis de radia??o (pleno sol e sombrite 50%). / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2008. / ABSTRACT Syngonanthus elegantulus Ruhland (vargeira) and Syngonanthus elegans (Bong.) Ruhl (p?- de-ouro) are everlasting flowers more commercially exploited in the region of Diamantina. The extractive such an important source of income for many families do Vale do Jequitinhonha. The areas of occurrence of these species are decreasing drastically due to excessive pressure of collection and management with fire, which is placed after the first rains (sept. / oct.) And is used frequently aimed at increasing the production of flowers. According to collectors in the year when the fire does not arise, the production of subsequent chapters in the harvest is reduced. The interference of vegetation cover in the penetration of light is an important aspect in the management of the species. In handling the ever-living, the fire can act eliminating the shading caused by other species that occur associated with them and thus change the penetration of light, interfering with the germination, vegetative growth and production of flowers. Information on the responses plant in different conditions of light is of great importance to determine their potential for production and understand its competitive capacity under different conditions of management. The objective was to study the behavior of physiological and anatomical S. elegans and S. elegantulus grown in pots, under two levels of radiation (full sun and sombrite 50%).
| Identifer | oai:union.ndltd.org:IBICT/oai:acervo.ufvjm.edu.br/jspui:1/555 |
| Date | 21 July 2008 |
| Creators | Nunes, Silvia Cristina Paslauski |
| Contributors | Cano, Marco Antonio Oliva, Nunes, Ubirajara Russi, Oliveira, Maria Neudes Sousa de, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFVJM, instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri, instacron:UFVJM |
| Rights | info:eu-repo/semantics/openAccess |
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