Seed Storage Behavior
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Storage and in vitro germination of orchids (Orchidaceae) seeds from Atlantic Forest – Brazil
Abstract: The orchid seed banks of Atlantic Forest may be considered a key strategy for the conservation of species threatened with extinction by indiscriminate collection or habitat destruction. The aim of this study was to evaluate the seed viability, to choose the best culture medium for the asymbiotic germination and evaluate germination, after storage f
An. Acad. Bras. Ciênc.. Publicado em: 16/09/2019
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2. Drying and reduction in sensitivity to desiccation of seeds of Alibertia edulis: the influence of fruit ripening stage
ABSTRACT The intense environmental degradation in tropical regions suitable for agriculture has decreased native forest populations of plants with important fruits and medicinal properties. Alibertia edulis is a native tree from the Brazilian Cerrado. Knowledge about the effects of drying and storage on the physiological behavior of its seeds may aid in its
An. Acad. Bras. Ciênc.. Publicado em: 2018-04
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3. Sampling Position under No-Tillage System Affects the Results of Soil Physical Properties
ABSTRACT Understanding the spatial behavior of soil physical properties under no-tillage system (NT) is required for the adoption and maintenance of a sustainable soil management system. The aims of this study were to quantify soil bulk density (BD), porosity in the soil macropore domain (PORp) and in the soil matrix domain (PORm), air capacity in the soil m
Rev. Bras. Ciênc. Solo. Publicado em: 29/04/2016
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4. Efeitos da secagem na viabilidade das sementes de Ilex paraguariensis St. Hil.
Este estudo foi desnvolvido com o objetivo de verificar o comportamento das sementes de Ilex paraguariensis, submetidas a niveis crescentes de desidratacao e posterior avaliacao de viabilidade. Sementes de I. paraguariensis fora colhidas em Ivai, PR, em fevereiro de 1998. Em marco desse ano, as sementes foram acondicionadas em sacos de papel "kraft" e submet
Boletim de Pesquisa Florestal. Publicado em: 2011
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5. Avaliação do potencial fisiológico e métodos de condicionamento, secagem e armazenamento de sementes de pepino / Evaluation of the physiological potential and priming, drying and storage of cucumber seeds
The objectives of this research were to identify reliable methods to evaluate the physiological potential of cucumber seeds, verify the relationship between seed physiological potential and field performance, as well as to define a suitable procedures for seed priming, drying and storage. The study was conducted in two experimental phases using seed lots of
Publicado em: 2008
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6. Comportamento germinativo de espécies do gênero Stachytarpheta Vahl. (Verbenaceae) ocorrentes nos campos rupestres da Cadeia do Espinhaço em Minas Gerais
The present work studied the seed germination ecology of thirteen Stachytarpheta Vahl species, twenty-two populations and a hybrid between S. glabra Cham. and S. confertifolia Mold., occurring in the Rock Outcrops of the Espinhaço Range in its Minas Gerais state portion, in Brazil. Were evaluated biometrics, light and temperature influences, in addition to
Publicado em: 2008
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7. Biologia reprodutiva e germinação de sementes em Adenostemma brasilianum (Pers.) Cass. (Asteraceae) / Reproductive biology and seed germination of Adenostemma brasilianum. (Pers.) Cass. (Asteraceae)
Specific studies on the reproductive biology and seed germination of Adenostemma brasilianum are inexistent. Aiming to fill this gap, the objective of this study was to investigate its life history (reproductive phenology and fruit dispersion process), reproductive biology, including tests on the efficiency of two types of materials in isolating the heads fr
Publicado em: 2007
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8. ConservaÃÃo de sementes de espÃcieis dos gÃneros Nectandra, Ocotea e Persea (Lauraceae) / Conservation of species seeds of Nectandra, Ocotea and Persea generos (LAURACEAE).
This study aimed to investigate the seed storage behavior, the effect of the fruits coloration and storage (5C, 60%RH) on seed viability, and to adapt the X ray method to verify alterations in the internal morfology and their effects on the seed quality of the species of Lauraceae which grow in the south of Minas Gerais State, Brazil. Seeds of Nectan
Publicado em: 2006
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9. Avaliação do potencial fisiológico, métodos de condicionamento e desempenho de sementes de couve-flor (Brassica oleracea L. var. botrytis) durante o armazenamento e em campo / Evaluation of the physiological potential, priming methods and performance of cauliflower (Brassica oleracea L. var. botrytis) seedlots
The objectives of this research were to identify reliable methods to evaluate the physiological potential of cauliflower seeds, verify the relationship between seed physiological potential and field performance, as well as to define a suitable procedure for seed priming and identify efficient drying methods to avoid the possible reversion of beneficial primi
Publicado em: 2006
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10. Stressful factors in seed germination and in vitro propagation of Passiflora edulis Sims f. flavicarpa Degener / Fatores de estresse na germinação de sementes e na propagação in vitro de Passiflora edulis Sims f. flavicarpa Degener
The oxidative stress results into reaction series of the reactive oxygen species (ROS) that are considered as detrimental to biological membranes. In addition, the tissues can produce and liberate gases such as the ethylene and CO2, as being the first one responsible for the chlorosis, senescence and leaf abscission. High irradiance on the photosynthesizing
Publicado em: 2006
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11. GerminaÃÃo e armazenamento de aquÃnios de arnica (Lychnophora pinaster Mart.) coletados em diferentes estÃdios de maturaÃÃo / Germination and storage of arnica seeds (Lychnophora pinaster Mart.) collected at different maturation stages
Arnica (Lychnophora pinaster Mart) is from Asteraceae family, with medicinal properties, natural from rocky fields, considered endemic and threatened species. The objective of this work was to contribute with studies referring to seed collection, germination and storage, aiming to guarantee perpetuation through sexual propagation and future domestication of
Publicado em: 2005
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12. Gene Expression Programs during Brassica oleracea Seed Maturation, Osmopriming, and Germination Are Indicators of Progression of the Germination Process and the Stress Tolerance Level1
During seed maturation and germination, major changes in physiological status, gene expression, and metabolic events take place. Using chlorophyll sorting, osmopriming, and different drying regimes, Brassica oleracea seed lots of different maturity, stress tolerance, and germination behavior were created. Through careful physiological analysis of these seed
American Society of Plant Biologists.