Dormancy In Plants
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Floral phenology, seed germination and hybrid plants of the Amerindian yam (Dioscorea trifida)
RESUMO O cará (Dioscorea trifida) é uma planta alimentícia nativa da Amazônia. Diversas variedades locais são cultivadas por agricultores familiares para consumo e comercialização local. Porém, processos socioeconômicos podem estar causando a erosão genética da espécie. O conhecimento sobre a reprodução sexuada da espécie é essencial para sua
Acta Amaz.. Publicado em: 12/08/2019
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2. Propagation of Annonaceous plants
Resumo A presente revisão tem por objetivo apresentar os avanços nos estudos sobre a propagação de espécies da família Annonaceae, que inclui espécies de importância econômica como: graviola, fruta-do-conde, atemoia e cherimoia. Na propagação sexuada, os avanços estão relacionados, principalmente, com a melhor compreensão dos estádios de dese
Rev. Bras. Frutic.. Publicado em: 14/03/2019
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3. Abscisic acid and the antioxidant system are involved in germination of Butia capitata seeds
ABSTRACT Seed germination is an important step for plants without vegetative propagation and is a physiological process that begins with specific environmental cues resulting in biochemical responses. Breaking-dormancy is necessary to study germination in dormant seeds with asynchronous germination. We investigated the processes of breaking dormancy and germ
Acta Bot. Bras.. Publicado em: 21/09/2018
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4. Anatomical modifications of Butia capitata propagated under colored shade nets
Abstract The jelly palm plant [Butia capitata (Martius) Beccari] is a native palm of the Cerrado biome used for many purposes in northern Minas Gerais State, Brazil. Dormancy is common in palm seeds, resulting in slow and uneven germination that may take years to complete. Modification in the growth pattern, anatomical parameters, physiological and biochemic
An. Acad. Bras. Ciênc.. Publicado em: 03/09/2018
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5. Phenological characterization and temperature requirements of Annona squamosa L. in the Brazilian semiarid region
ABSTRACT The phenological growth stages of various species of monocotyledonous and dicotyledonous plants can be uniformly coded using the Biologische Bundesanstalt, Bundessortenamt, und Chemische Industrie (BBCH) scale. The aim of the present study was to determine the duration of different phenological stages and the temperature requirements of the sugar-a
An. Acad. Bras. Ciênc.. Publicado em: 20/07/2017
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6. Inter- and intra-population variability in physical dormancy along a precipitation gradient
ABSTRACT Physical dormancy enables plants that occur in temporally stochastic and harsh environments to survive; thus, within the distribution area of a species, the percentage of seeds with physical dormancy is expected to increase towards more arid and unpredictable areas. There have been no previous studies evaluating both inter and intra-population varia
Acta Bot. Bras.. Publicado em: 13/03/2017
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7. Tissue culture of ornamental cacti
Cacti species are plants that are well adapted to growing in arid and semiarid regions where the main problem is water availability. Cacti have developed a series of adaptations to cope with water scarcity, such as reduced leaf surface via morphological modifications including spines, cereous cuticles, extended root systems and stem tissue modifications to i
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-12
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8. Considerations on extinct species of Brazilian flora
AbstractExtinction risk assessments are important tools for plant conservation. However, misinterpretations can lead to negative consequences for survival of species. Inconsistent categorization as extinction, when the species is still extant, constitutes a Romeo error, and annuls all and any mechanism of existing legal protection. But precisely determining
Rodriguésia. Publicado em: 2015-09
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9. Methods to preserve potentially toxigenic fungi
Microorganisms are a source of many high-value compounds which are useful to every living being, such as humans, plants and animals. Since the process of isolating and improving a microorganism can be lengthy and expensive, preserving the obtained characteristic is of paramount importance, so the process does not need to be repeated. Fungi are eukaryotic, ac
Braz. J. Microbiol.. Publicado em: 2014
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10. Métodosdesuperaçãodedormênciadesementesde Flamboyant / Methods of overcoming seed dormancy flamboyant
The Flamboyant (Delonix regia (Bojer ex Hook) Raf.) is an exotic ornamental species adapted to the conditions of the Brazilian territory, belonging to subfamily Caesalpinioideae and it has seeds with hard coat that promotes seed dormancy caused by the impermeability of seed coat to water and oxygen. The aim of this study was to test different types of mechan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2012
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11. Padrão de germinação de sementes e estabelecimento de mudas de guanandi (Calophyllum brasiliense Cambess.)
CHAPTER II: Calophyllum brasiliense Cambess. is a tree, typical of tropical rainforests, with seed germination variable and uneven due to restrictions of the layers of the integument. The objective was to characterize the dormancy of seeds of species by their ability to soak, germination, emergence, distribution of germination over time and the timing and qu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2011
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12. Algumas informações sobre a produção e o armazenamento de sementes de Cratylia argentea.
ABSTRACT: Cratylia argentea is a promising shrub forage legume native of Cerrado ecosystem. Information concerning the reproductive phenology, seed morphology, and seed production and storage are presented. Seed production varies with genotype, age, and spacing of the plants. Seeds of Cratylia argentea can be harvested manually, sun dried and hand cleaned. S
Planaltina. Publicado em: 2011