Seeds Longevity
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Advances in Coconut palm propagation
Resumo O coqueiro (Cocos nucifera L.) é uma das mais importantes espécies tropicais utilizadas pelo homem, conhecida como “árvore da vida”. Nas últimas décadas, com a expansão das áreas de cultivo, limitações como a ocorrência de pragas, uniformidade de culturas, adaptação a diferentes ecossistemas e outras têm afetado a produção e a long
Rev. Bras. Frutic.. Publicado em: 29/04/2019
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2. CASTOR BEANS QUALITY SUBJECTED TO DIFFERENT STORAGE TEMPERATURES AND PERIODS
ABSTRACT The control of the temperature of the storage air have the ability to improve a better preservation of some types of agricultural products. However, the most effective temperature for storage as well as the duration of storage varies between products. Therefore, special attention should be concentrated on the storage temperature and its effects on t
Eng. Agríc.. Publicado em: 2018-06
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3. Storage Potential of Local Brazilian Pine Seed Varieties
ABSTRACT Brazilian pine seeds (Araucaria angustifolia) are recalcitrant, and there are no studies evaluating the longevity of their different varieties. Our objective was to evaluate the capacity of different varieties of Brazilian pine seeds to maintain their physiological quality during storage. Seeds of the varieties: sancti josephi (I), angustifolia (II)
Floresta Ambient.. Publicado em: 01/03/2018
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4. Seed longevity of Eragrostis plana Nees buried in natural grassland soil
The objective of this research was to evaluate the seed longevity of Eragrostis plana Nees buried at different soil depths, in a natural-grassland area in the Pampa biome (46 m altitude, 30º05´S and 51º40´W) of Rio Grande do Sul State, Brazil. The experimental design was a split-plot type in complete blocks with two factors: seeds buried at five differen
R. Bras. Zootec.. Publicado em: 2014-11
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5. Morphology of seeds and seedlings of four species of Vigna Savi (Leguminosae, Phaseolinae)
Four neotropical species of Vigna Savi (Leguminosae, Phaseolinae) have potential value as forage crops or ornamentals and could be cultivated in tropical or subtropical areas, even on floodplains. In order to obtain useful data for their culture and taxonomy, the seed morphology, germination pattern (hypogeal or epigeal) and seedling development were studied
Acta Bot. Bras.. Publicado em: 2013-09
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6. Reproductive biology and early establishment of Pinus elliottii var. elliottii in Brazilian sandy coastal plain vegetation: implications for biological invasion
Pinus is the most invasive woody taxon, exceeded only by herbaceous plants. This study reports the reproductive biology and early establishment of Pinus elliottii Engelm. var. elliottii, describing its invasive properties in a protected natural area of the Brazilian coastal sandy plains. We evaluated the seed germination and rain, longevity of seed viability
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-04
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7. Subsídios para o manejo da invasão biológica de uma palmeira em áreas de Mata Atlântica / Subsidies to ecological management of the biological invasion by a palm tree in Atlantic forest areas
The introduction of alien species in natural habitats resulting in processes of biological invasions is one of the indirect human actions which nowadays threaten global biodiversity. Although bioinvasions usually cause huge negative impacts in the native biota, they are still little studied in the megadiverse tropical environments. The Australian palm tree A
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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8. Effect of Trichopoda Pennipes parasitization on Nezara Viridula.
Trichopoda pennipes parasitization had a strong negative effect on Nezara viridula adult longevity, fecundity and feeding. A parasitized female lived half the time of an unparasitized one and for a parasitized male this reduction in longevity was even greater. Unparasitized females laid four times more eggs than parasitized one. Parasitization had no signifi
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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9. Condições de armazenamento e conservação do potencial fisiológico de sementes de diferentes genótipos de milho / Storage conditions and seed performance of different corn genotypes
Seed storability is affected by several factors including genotype and environmental conditions. Corn seed producers are highly concerned with variations in seed longevity of different hybrids, resulting in lower performance than desired during the normal sowing season as much as during off season times. The objective of this research was to evaluate the eff
Publicado em: 2011
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10. Comportamento da dormencia em sementes de braquiaria submetidas a tratamentos termicos e quimicos.
O objetivo deste trabalho foi estudar os efeitos de tratamentos térmicos e químicos sobre a dormência em sementes de Brachiaria brizantha cv. Marandu. Sementes com taxas de dormência superiores a 25% e pureza física acima de 98% foram submetidas a temperaturas de 40, 55, 70 e 85°C durante 5, 10 e 15 horas, à imersão em H2SO4 (98%, 36N) por 15 minutos
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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11. Efeito de genótipos de tomateiro e de extratos aquosos de folhas de Melia azedarach e de sementes de Azadirachta indica sobre Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)
Insecticide plants are an important tool among the new alternatives for pest control in IPM systems because they reduce the use of synthetic insecticides, preserving human health and the environment. We investigated the effects of aqueous extracts of Melia azedarach leaves and Azadirachta indica seeds and three tomato genotypes, 'Santa Clara', 'IPA-5' - Sola
Neotropical Entomology. Publicado em: 2010-10
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12. Qualidade de sementes de milho tratadas com inseticidas, ao longo do armazenamento / Quality of maize seeds treated with different insecticides throughout the storage
O tratamento de sementes com inseticidas tem sido utilizado como ferramenta preventiva para evitar possÃveis perdas decorrentes da aÃÃo de pragas do solo e parte aÃrea. Apesar de o mÃtodo ser considerado muito eficiente, alguns dos produtos pode causar problemas de fitotoxidez logo apÃs o tratamento e ao longo do armazenamento. Assim, objetivou-se aval
Publicado em: 2009