Net Photosynthesis
Mostrando 1-12 de 239 artigos, teses e dissertações.
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1. EFFECT OF THE MIST MICRO-SPRAY TIME ON PHOTOSYNTHETIC SPATIAL HETEROGENEITY OF GRAPE CANOPY
ABSTRACT In grape, high temperatures and low humidity prolong midday depression of foliar photosynthesis and dramatically reduce fruit yield. In this study, we explored the effects of various mist micro-spray treatments on grape photosynthesis at a test site in Shanshan County (N, 42.91°; E, 90.30°), Turpan, Xinjiang, China. We tested four different mist m
Eng. Agríc.. Publicado em: 2021-02
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2. Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation
RESUMO As águas residuárias podem ser consideradas como uma fonte hídrica e nutricional excelente para as plantas cultivadas. Porém, a presença de altas concentrações de sais e de compostos tóxicos pode afetar negativamente as plantações. Avaliou-se o efeito da irrigação com diferentes concentrações de água residuária tratada sobre o acumulo
Ciênc. agrotec.. Publicado em: 20/01/2020
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3. Physiological responses of Eucalyptus urophylla young plants treated with biostimulant under water deficit
Resumo Os bioestimulantes consistem em uma mistura de reguladores de crescimento que, quando aplicados nas plantas, atuam no equilíbrio hormonal, melhorando seu desenvolvimento. Stimulate® é um bioestimulante composto por ácido indolbutírico (0,005%), cinetina (0,009%) e ácido giberélico (0,005%), que promove o crescimento das raízes, melhora a absor
Ciênc. Florest.. Publicado em: 02/12/2019
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4. Foliar application of silicon decreases wheat blast symptoms without impairing photosynthesis
ABSTRACT Considering the importance of blast, caused by Pyricularia oryzae, to impact wheat yield, this study investigated whether the foliar spray of potassium silicate (PS) could affect the photosynthesis of wheat plants and its potential to reduce disease symptoms. The Exp. 1 aimed to determine the effect of the foliar spray of PS on the photosynthetic pe
Bragantia. Publicado em: 03/10/2019
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5. Does Spraying of Atrazine on Triazine-Resistant Canola Hybrid Impair Photosynthetic Processes?
RESUMO: A canola é uma importante cultura para rotação na estação fria, e o uso de híbridos com resistência à atrazina pode contribuir para o aumento da produtividade. Este trabalho objetivou avaliar o efeito da atrazina nos processos fotoquímicos e bioquímicos da fotossíntese em canola resistente a triazinas. O experimento foi conduzido em casa d
Planta daninha. Publicado em: 30/09/2019
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6. Mitigation of drought stress effects on soybean gas exchanges induced by Azospirillum brasilense and plant regulators
RESUMO O déficit hídrico é limitante à produção agrícola, tendo como efeito primário a redução nas trocas gasosas vegetais, e a continuidade da incidência resulta em menor produtividade. Objetivou-se avaliar as respostas fotossintéticas e a produção de soja sob déficit hídrico severo induzido, em relação à inoculação via semente e aplica
Pesqui. Agropecu. Trop.. Publicado em: 18/07/2019
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7. Phenotypic Plasticity of Pimenta pseudocaryophyllus (Gomes) Landrum Under Different Light Conditions
ABSTRACT The heterogeneous light pattern in forest environments leads to specific morphological and physiological responses. However, anthropogenic pressures in areas such as Atlantic Forest and Cerrado are modifying the light availability, and consequently the forest community composition. The aim of this study was to investigate the plasticity of forest sp
Floresta Ambient.. Publicado em: 04/07/2019
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8. Training systems and rootstocks on yield and agronomic performance of ‘Syrah’ grapevine in the Brazilian semiarid
RESUMO O Vale do São Francisco destaca-se entre as principais regiões vitivinícolas brasileiras, sendo o cultivar ‘Syrah’ muito importante na elaboração de vinhos tintos. O objetivo deste trabalho foi avaliar a influência do sistema de condução e porta-enxerto sobre o rendimento e outras variáveis agronômicas do cultivar ‘Syrah’ durante oit
Ciênc. agrotec.. Publicado em: 01/07/2019
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9. Gas exchanges of melon under water stress in the Submedium region of the São Francisco River Valley
ABSTRACT. The current scenario of increased water scarcity is due to climate change and directly affects food production. It is thus necessary to develop strategies to mitigate the impacts of low water availability. Therefore, the goal of the present study is to evaluate the physiological behaviour of melon cultivars under water stress. The experiment was co
Acta Sci., Agron.. Publicado em: 13/06/2019
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10. Photosynthesis and Growth of Copaiba Seedlings Subjected to Soil Flooding
ABSTRACT The present study aimed to evaluate the effects of soil flooding on photosynthesis, growth, and biomass partitioning of young plants of copaiba (Copaifera lucens Dwyer, Fabaceae ) to investigate the possibility of using this species in restoration projects of riparian forests. Based on our results, we concluded that young plants of C. lucens are ab
Floresta Ambient.. Publicado em: 07/01/2019
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11. Changes in phenotypic variability of two tropical woody species due to short and long-term exposure to different irradiances
ABSTRACT Studies addressing the physiological and anatomical responses of plants under different light intensities normally are performed in short term. Thus, the present study includes a long term analysis. This study aims to verify whether the phenotypic variability off attributes in two woody tropical specieis, Paquira aquatica and Sterculia foetida, are
Bragantia. Publicado em: 19/07/2018
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12. Omission and Resupply of Nitrogen Affect Physiological and Enzymatic Activities and the Gene Expression of Eucalypt Clones
ABSTRACT: The mineral nutrient uptake of plants in the field occurs in pulses, due to variations in the substance concentrations at the root surface. The fluctuations in nutrient supply probably induce changes in the plant, which are to date unknown for Eucalyptus. This study evaluated these changes in plant growth, nutritional status, photosynthesis, and ge
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016