Scarification
Mostrando 13-24 de 78 artigos, teses e dissertações.
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13. Methods for overcoming dormancy and seed storage of Enterolobium contortisiliquum
ABSTRACT. The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. F
Acta Sci., Agron.. Publicado em: 28/03/2019
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14. 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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15. AGRONOMICAL ATTRIBUTES OF SOYBEANS AND SOIL RESISTANCE TO PENETRATION IN NO-TILLAGE AND CHISELED SURFACES
ABSTRACT Farming systems may affect soil properties and crop production of components, decreasing yields. This study aimed to assess penetration resistance (PR) and agronomic traits of soybeans under no-tillage (NT) and chiseling (CP). The experiment was carried out in a randomized block with two treatments (tillage and scarification) with 12 repetitions; ye
Eng. Agríc.. Publicado em: 2017-02
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16. Do fruit morphology and scarification affect germination and predation rates of Babassu seeds?
ABSTRACT Seed predation is a natural phenomenon that can occur either before or after dispersal and can significantly reduce the economic value and reproductive potential of plants. The babassu palm (Attalea vitrivir, Arecaceae) is important to rural communities that extract oil from its fruits for a wide variety of uses. We evaluated the predation and germi
Acta Bot. Bras.. Publicado em: 2016-12
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17. Overcoming dormancy and determining optimal temperature for slender serradella seed germination
ABSTRACT The objective of this study was to identify the most efficient method for overcoming coat-imposed dormancy and determine the optimal germination temperature for Ornithopus pinnatus seeds. Treatments to overcome dormancy were: intact seeds; immersion in hot water at 60 ºC, followed by soaking in the same water (unheated)/24 h; immersion in hot water
R. Bras. Zootec.. Publicado em: 2015-12
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18. 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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19. Efectos de la temperatura, el ambiente lumínico y la escarificación sobre la germinación de semillas de Bromelia serra Griseb. (Bromeliaceae)
Bromelia serra Griseb. (Bromeliaceae) is a terrestrial herb that grows in the understory of Chaco and Cerrado woodlands. In this study, the effects of temperature, light environment and scarification on seed germination were analyzed. Two temperature regimes (15/20 ºC and 20/30 ºC), three light environments (Light, Filter and Darkness; 100% light and 0.65
Rev. bras. sementes. Publicado em: 2012
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20. Atributos físicos do solo, produção de biomassa e balanço energético em sistema de integração lavoura-pecuária leiteira sob plantio direto / Soil physical attributes, production of biomass and energy balance in system integration crop livestock dairy in tillage
The integrated crop-livestock allow a series of advantages, but the intensive land use without technical criteria regarding the grazing pressure and machinery traffic can bring damage to soil physical quality, as manifested by compression. In these more intensive systems of production there is growing concern in relation to energy balance. The large amount o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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21. As práticas de modificações corporais e a formação de identidades somáticas / The practice of body modification and training of somatic identity
The present study sought to investigate, according to the conception of identities somatic (ORTEGA, 2008), the constitution of subjectivity from the adherents of extreme body modification practices such as tattooing, piercing, scarification, body suspension, among others, concerning the movement of Body Modification. Every age produces a type of body that sy
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2011
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22. Emergência, crescimento inicial de plântulas e enxertia hipocotiledonar por garfagem no topo em fenda cheia com miniestacas apicais para diferentes passifloráceas
Passion fruit is composed of about 630 species, which include economically three species: Passiflora edulis Sims f. flavicarpa, Passiflora alata and Passiflora edulis. Considering that their culture is prominent in South America with about 90% of world production and that Brazil is the worlds largest producer of this culture the objective of this study was t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
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23. 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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24. Scarification with sulphuric acid of Schizolobium amazonicum Huber ex Ducke seeds - Fabaceae.
2007
Scientia Agricola. Publicado em: 2011