Plants Hardiness
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. Interações e viabilidade do plantio consorciado de pinhãomanso (Jatropha curcas) e girassol (Helianthus annuus L.) / Feasibility and interactions of intercropping planting of physic nut (Jatropha curcas l.) and sunflower (Helianthus annuus l.)
With the recent advent of biodiesel in Brazil, there has been a significant increase in the number of research on the potential of utilizing oleaginous as raw material, especially in physic nut (Jatropha curcas L.), due to its superior oil technical characteristics, as well as the plants hardiness and productivity. However, since the production of physic nut
Publicado em: 2010
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2. Identificação e mapeamento genético de genes de resistência à ferrugem asiática da soja
A produção da cultura da soja [Glycine max (L.) Merril] nas Américas do Sul e Norte está sendo ameaçada pela recente disseminação da ferrugem asiática da soja (FAS). A doença, causada pelo fungo Phakopsora pachyrhizi Sidow, é considerada a doença fúngica mais ameaçadora para a soja nas Américas. Atualmente, a utilização de fungicidas é o ún
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/12/2007
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3. Avaliação do uso de ácido salicílico em sementes de calêndula (Calendula officinalis L.) sob diferentes estresses / Study the use salicylic acid of marigold seeds (Calendula officinalis L.) or stressing conditions.
Marigold (Calendula officinalis L.) is an important medicinal and decorative plant also used in the kitchens and in the manufacturing of cosmetic and phytotherapic products. Plants are susceptible to biotical and non biotical aggression and independently of not showing agile movements as defence; they could present deep modifications in the cell metabolism a
Publicado em: 2006
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4. Resistence to leprosis and alternaria brown spot in citrus / Resistencia a leprose e a mancha marrom de alternaria em citros : caracterização de hibridos, herança, mapeamento genetico e expressão genica
A leprose dos citros e a mancha marrom de Alternária são importantes doenças da citricultura. O conhecimento dos mecanismos genéticos envolvidos nas resistências apresentadas por algumas espécies e híbridos de citros a estas doenças é de fundamental importância para o desenvolvimento de estratégias para o melhoramento genético visando à utiliza�
Publicado em: 2005
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5. Changes in Frost Hardiness of Stem Cortical Tissues of Cornus stolonifera Michx. after Recovery from Water Stress 1
Moderate water stress increases frost hardiness in many woody plants but little attention has been given to changes in hardiness after recovery from water stress. Tests were carried out to examine how much water stress-induced frost hardiness remained when plants were rewatered under different day length regimes. Red osier dogwood plants (Cornus stolonifera
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6. Induction of Frost Hardiness in Stem Cortical Tissues of Cornus stolonifera Michx. by Water Stress: I. Unfrozen Water in Cortical Tissues and Water Status in Plants and Soil 1
Water supply and day length were varied in cold hardiness studies of red osier dogwood plants (Cornus stolonifera Michx.). The frost killing temperature, the content and freezing of stem cortical tissue water along with soil moisture content and tension were evaluated. Seven days of water stress in long and short day photoperiod regimes caused a rapid decrea
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7. Relationship of Electrical Conductance at Two Frequencies to Cold Injury and Acclimation in Cornus stolonifera Michx. 1
The ratio of electrical conductance measured at two frequencies can be used to predict the cold hardiness of stem sections of Cornus stolonifera Michx. during the first stage of cold acclimation. Electrical conductance at 50 hertz divided by electrical conductance at 100 kilohertz gave a better estimate of hardiness than measurements at either frequency alon
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8. Induction of Frost Hardiness in Stem Cortical Tissues of Cornus stolonifera Michx. by Water Stress: II. Biochemical Changes 1
A decrease of protein, RNAs, and starch, and an increase of sugar were observed in 3-day water-stressed red osier dogwood plants (Cornus stolonifera Michx.) when the frost hardiness increased from −3 to −6 C. As the frost hardiness increased to −11 C after 7 days of treatment, the starch continuously decreased, however, the proteins and RNAs increased
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9. Characteristics of Cold Acclimation and Deacclimation in Tuber-bearing Solanum Species 1
The effect of temperatures on cold acclimation and deacclimation in foliage tissues was studied in Solanum commersonii (Oka 4583), a tuber-bearing potato. The threshold temperature for cold acclimation was about 12 C. In a temperature range of 2 to 12 C, the increase in hardiness was dependent on the acclimating temperature; the lower the acclimating tempera
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10. Regulation of Cold Hardiness in Acer negundo12
The application of gibberellin to Acer negundo either during or after a short photoperiod strikingly lowered the amount of hardiness obtained after 4 weeks in darkness at 5°. Two growth retardants, B9 and Amo 1618, the latter of which interferes with gibberellin synthesis, brought about hardiness increases under long photoperiods. The naturally occurring in
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11. PRELIMINARY RESULTS IN MEASURING THE HARDINESS OF PLANTS 1
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12. INVESTIGATIONS OF THE HARDINESS OF PLANTS BY MEASUREMENT OF ELECTRICAL CONDUCTIVITY1