Dormancy Breaking
Mostrando 1-12 de 43 artigos, teses e dissertações.
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1. Hymenaea parvifolia Huber: dormancy breaking, morphology of fruit, seed and seedling
ABSTRACT The successful use of native species in conservation actions depends on basic knowledge of their biology, beginning with the identification of regenerating individuals in the field, up to the behavior and development of the species from the early stages of germination. Moreover, seed propagation and germination may be limited by the occurrence of do
Rev. Ceres. Publicado em: 2021-04
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2. Seed germination and dormancy break in Eragrostis polytricha, a native Brazilian grass species with potential for recovery of degraded lands
ABSTRACT Ferruginous Rocky Outcrops have high levels of species richness and endemism, but have been threatened by several anthropic actions, especially mining. Eragrostis polytricha, a common grass species in the vegetation of these outcrops, has shown promising features for use in the recovery of mining areas. However, in order to fully understand the spec
Acta Bot. Bras.. Publicado em: 2020-09
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3. Budbreak induction in kiwifruit vines cultivated in an organic system by the biological method of single node cutting
ABSTRACT Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in the demand for their fruits. Hydrogenated cyanamide, which is the most common rest-breaking agent, is highly toxic and its use is not allowed in organic production systems. This study aimed at evaluating the efficiency of altern
Bragantia. Publicado em: 2020-06
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4. Investigation of dormancy and storage potential of seeds of yellow passion fruit
Resumo: Passiflora actinia Hooker é uma espécie nativa de maracujazeiro, típica da Mata Atlântica e da Mata com Araucária, que apresenta valores econômico (fruto comestível), medicinal (atividades sedativa e ansiolítica), além de ser usada em propagação vegetativa (porta-enxerto para outras espécies de Passiflora). Este trabalho teve por objetivo
J. Seed Sci.. Publicado em: 09/09/2019
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5. DORMANCY BREAKING, GERMINATION, AND PRODUCTION OF MIMOSA BIMUCRONATA (DC.) KUNTZE SEEDLINGS
ABSTRACT Mimosa bimucronata is a pioneer, easily adapted, fast-growing species used in restoration programs. The objectives of this study were to experimentally compare (1) methods for dormancy breaking; (2) suitable temperature and substrate for germination; and (3) suitable light intensity and substrate volume for seedling production of M. bimucronata. In
CERNE. Publicado em: 20/05/2019
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6. Torsion of canes and hydrogenated cyanamide in bud bursting and production of grapevine cv. Itália muscat in the São Francisco valley
Resumo A videira cultivada em regiões tropicais, como o Submédio do Vale do São Francisco, exibe forte dormência de gemas e dominância apical, havendo a necessidade da utilização de produtos que promovam a quebra de dormência das gemas. O presente trabalho teve como objetivo avaliar a eficiência da aplicação de cianamida hidrogenada e da prática
Rev. Bras. Frutic.. Publicado em: 11/04/2019
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7. Dormancy Breaking in Senna Pendula (Willd.) H. S. Irwin & Barneby
ABSTRACT Senna pendula seeds dormancy is caused by impermeability of the seed coat to water. In order to determine the best methodology to overcome dormancy and to perform a morphological characterization, two batches of seeds were submitted to the following treatments: a) mechanical scarification of the seed coat; b) immersion in hot water at 70 °C for 5,
Floresta Ambient.. Publicado em: 10/12/2018
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8. 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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9. To resist or to germinate? The effect of fire on legume seeds in Brazilian subtropical grasslands
Fire plays an important role in several grassland ecosystems in the world. Fire can trigger germination in several species, by breaking the physical dormancy of their seeds. Thus, we hypothesized that exposure to high temperatures during fire would break seed dormancy and enhance germination. We tested the effect of high temperatures on the germination of si
Acta Bot. Bras.. Publicado em: 2016-03
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10. Disturbance as a factor in breaking dormancy and enhancing invasiveness of African grasses in a Neotropical Savanna
The Cerrado is threatened by wildfires and invasive species. We aimed to evaluate in laboratory conditions whether temperature fluctuation at the soil surface, resulting from the absence of vegetation due to fire, can affect the germination of Urochloa decumbens and U. brizantha, two invasive African grasses. Seeds of both species were submitted to simulatio
Acta Bot. Bras.. Publicado em: 2016-03
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11. Effects of chemical treatments and environmental factors on seed dormancy and germination of shepherd's purse (Capsella bursa-pastoris (L.) Medic.)
Shepherd's purse (Capsella bursa-pastoris) is a problematic weed in citrus orchards and crop fields in northern Iran. In a series of laboratory and greenhouse experiments, we evaluated the effects that treatment with gibberellic acid (GA3) and potassium nitrate (KNO3), as well as environmental factors, including temperature, the duration of pre-chilling (wet
Acta Bot. Bras.. Publicado em: 2014-12
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12. Produção de mudas enxertadas de umbuzeiro (Spondias tuberosa Arruda).
Trata sobre mudas enxertadas de umbuzeiro, como também a colheita, beneficiamento e armazenamento de sementes, quebra de dormência, formação de sementeira, repicagem, enxertia e transplantio.
Petrolina : Embrapa Semi-Árido. Publicado em: 2011