Plant Tolerance
Mostrando 1-12 de 465 artigos, teses e dissertações.
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1. Soybean tolerance to defoliation at the beginning of pod formation as affected by plant density
ABSTRACT Soybean tolerance to defoliation may be affected by population density, as the plant population interferes with the crop leaf area index . This study aimed to evaluate the effect of defoliation at the beginning of pod formation on the agronomic performance of soybean at different plant densities. The experiment was conducted under field conditions i
Revista Ceres. Publicado em: 2022
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2. Hydroponic cultivation of coriander intercropped with rocket subjected to saline and thermal stresses in the root-zone
ABSTRACT An experiment was carried out in a randomized blocks design, aiming at evaluation of the cultivation of coriander intercropped with rocket subjected to saline and thermal stresses in the root-zone. Six treatments were evaluated, as follows: four treatments consisted of the combinations of two levels of electrical conductivity of water (ECw 0.3 and 6
Revista Ceres. Publicado em: 2022
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3. Silicon in wheat crop under water limitation and seed tolerance to water stress during germination
ABSTRACT Water stress during wheat seed germination and seedling establishment for affect the percentage and speed of germination. Silicon (Si) is related to plant tolerance to different types of stress, then the application of this nutrient in the mother plant during seed production could contribute to the improvement of the seed quality and, consequently,
Rev. Ceres. Publicado em: 2021-08
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4. Maintenance of wetland plant communities: the role of the seed bank in regeneration of native plants
ABSTRACT Exotic grasses have been introduced into wetlands and can compete with native plants due to their high tolerance of flood and dry periods. Flooding can facilitate seed dispersal of exotic species and reduce the diversity of native species. We compared two grasslands to assess whether seed banks can maintain the diversity of native plants in wetlands
Acta Bot. Bras.. Publicado em: 2021-03
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5. Implications of global climate change for the development and ecological interactions between two key Amazonian aquatic macrophytes
ABSTRACT Amazon wetlands are among the most vulnerable ecosystem to be impacted by climate change, which may increase the frequency of extreme droughts and floods. We used Eichhornia crassipes and Pistia stratiotes, two abundant aquatic plants in the Amazon floodplains, to evaluate the effects of combined temperature and [CO2] increase on growth, physiology
Acta Bot. Bras.. Publicado em: 2021-03
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6. Tolerance of cowpea cultivars to pre-emergence application of sulfentrazone
ABSTRACT Improved methods of weed control are required to support expansion of large-scale cowpea cultivation in mid-west Brazil. With the aim of testing our hypothesis that the tolerance of cowpea cultivars to sulfentrazone is dose- and genotype-dependent, we assessed the effects of increasing doses (0, 250, 500 and 1,000 g ha-1 of sulfentrazone) on the cul
Rev. Ceres. Publicado em: 2021-02
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7. Methyl jasmonate modulation reduces photosynthesis and induces synthesis of phenolic compounds in sweet potatoes subjected to drought
ABSTRACT Sweet potato [Ipomoea batatas (L.) Lam.] has wide adaptability to different climatic conditions. However, its yield can be affected by prolonged periods of drought. Application of exogenous jasmonates can modulate several physiological and biochemical processes, improving plant tolerance to abiotic stress. This study sought to evaluate the role of e
Bragantia. Publicado em: 2020-09
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8. Silicon nutrition counteracts salt-induced damage associated with changes in biochemical responses in apple
ABSTRACT Salt stress is an environmental challenge that adversely influences plant responses. Silicon (Si) nutrition plays critical roles in plant tolerance to salt stress. Apple (Malus domestica Borkh.), a salt sensitive fruit species, was used in the present experiment to investigate the influences of Si on salt stress as well as on alterations of biochemi
Bragantia. Publicado em: 2020-03
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9. Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses
ABSTRACT Seed germination and seedling growth are the stages most sensitive to salt stress, which can induce ion-specific effects and oxidative stress. Although silicon (Si) has been known to improve plant defense systems against stressful-conditions, little is known about seed priming with Si and mechanisms of Si-mediated alleviation of salt stress in seedl
Bragantia. Publicado em: 2020-03
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10. Ammopiptanthus mongolicus stress-responsive NAC gene enhances the tolerance of transgenic Arabidopsis thaliana to drought and cold stresses
Abstract Drought and cold are the primary factors limiting plant growth worldwide. The Ammopiptanthus mongolicus NAC11 (AmNAC11) gene encodes a stress-responsive transcription factor. Expression of the AmNAC11 gene was induced by drought, cold and high salinity. The AmNAC11 protein was localized in the nucleus and plays an important role in tolerance to drou
Genet. Mol. Biol.. Publicado em: 14/11/2019
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11. Performance of 'Valência' sweet orange grafted onto rootstocks in the state of Acre, Brazil
Resumo: O objetivo deste trabalho foi selecionar porta-enxertos, com base nos caracteres agronômicos e na qualidade de frutos da laranjeira 'Valência'. Os porta-enxertos avaliados foram: a tangerina 'Cleópatra'; os híbridos TSKFL x CTTR-013, LVK x LCR-038, TSKC x CTQT 1439-004, LVK x LVA-009 e TSK x TRENG-256 (citrandarin 'Indio'); o limoeiro-cravo 'Sant
Pesq. agropec. bras.. Publicado em: 11/11/2019
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12. Genetic divergence among eggplant genotypes under high temperatures
RESUMO O objetivo deste trabalho foi estimar a divergência genética entre genótipos de berinjela para caracteres agronômicos, visando gerar informações para a escolha de genótipos em programas de melhoramento genético para tolerância a altas temperaturas. Foram analisados dez caracteres recomendados pelo International Board for Plant Genetic Resourc
Hortic. Bras.. Publicado em: 07/11/2019