Consulta: subjectFacets:"Photosynthesis."
Registros recuperados: 4
Data/hora: 03/06/2024 11:17:20

Régua de Manejo de Pastagens: edição revisada.
Provedor de dados: 14
Autores: COSTA, J. A. A. da; QUEIROZ, H. P. de.
O manejo de pastagens sempre se constituiu numa dificuldade para os produtores e técnicos que trabalham com a produção animal em pasto. A principal dificuldade reside em ofertar uma quantidade adequada de forragem para satisfazer as exigências do animal em pastejo, e garantir a sobrevivência da espécie forrageira pastejada garantindo a manutenção de quantidade de folhas remanescentes suficientes para realizar a fotossíntese (principal mecanismo na nutrição dos vegetais) e não comprometer excessivamente as substâncias de reserva (carboidratos), utilizados na rebrota após a desfolha.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Pastejo rotacionado.; Massa do pasto; Exigência do animal em pastejo; Manejo; Pastagem; Produção animal; Pastejo contínuo.; Desfolha; Fotossíntese; Pastejo; Colmo; Rebrota; Pastures; Animal production; Photosynthesis.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1077406

Aplicação de CO2 via água de irrigação em meloeiro.
Provedor de dados: 14
Autores: PINTO, J. M.; BOTREL, T. A.; MACHADO, E. C.; FEITOSA FILHO, J. C.
bitstream/CPATSA/7791/1/INT16.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Melon.; Melão; Cucumis Melo; Dióxido de Carbono; Fertirrigação; Fotossíntese; Fruto; Qualidade.; Carbon dioxide; Fruit quality; Fertigation; Melons; Photosynthesis.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132856

Application of SIO2 nanoparticles AS pretreatment alleviates the impact of drought on the physiological performance of Prunus Mahaleb (Rosaceae)
Provedor de dados: 51
Autores: ASHKAVAND,PEYMAN; ZARAFSHAR,MEHRDAD; TABARI,MASOUD; MIRZAIE,JAVAD; NIKPOUR,AMIRREZA; BORDBAR,SEYED KAZEM; STRUVE,DANIEL; STRIKER,GUSTAVO GABRIEL.
We studied the physiological responses of Prunus mahaleb (Mahaleb) seedlings to drought stress when previously irrigated (or not) with different concentrations of SiO2 nanoparticles (SNPs). SNPs were applied at four concentrations (0, 10, 50 and 100 mg L-1) for 45 days, and then seedlings were subjected to three watering treatments including low (300 mL water every 3 d), moderate (150 mL water every 3 d) and severe drought stress (no irrigation) for 19 days. Results showed that gas exchange – photosynthesis, stomatal conductance, and transpiration rate – were significantly less impacted by severe drought stress when seedlings were pretreated with SNPs at high concentrations. Beneficial effects of SNPs pretreatment were evident in the nutritional status of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pre-treatment; Silica nanoparticles; Drought; Stress alleviation; Photosynthesis.
Ano: 2018
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722018000200007

Millet irrigation with treated wastewater: Gas exchange response and nutrient accumulation
Provedor de dados: 64
Autores: Reis,Matheus Mendes; Silva,Ariovaldo José da; Santos,Leonardo David Tuffi; Lopes,Érika Manuela Gonçalves; Barros,Rodrigo Eduardo; Donato,Luan Mateus Silva.
ABSTRACT Wastewater can be considered an excellent nutritional and water source for cultivated plants. However, the presence of high concentrations of salts and toxic compounds can negatively affect crops. The effect of irrigation with different concentrations of treated wastewater on the accumulation of nutrients and gas exchange aspects of millet (Pennisetum glaucum (L.) R. Br.) grown in clay soil and sandy loam soil was analyzed. This study was conducted in a greenhouse (16°40’57,50” S; 43°50’26,07” O; 650 m) in a 5 x 2 factorial design, consisting of five levels of concentration of treated wastewater (0, 25, 50, 75, and 100%), combined with two types of soil (clay and sandy loam). The experiment was designed in randomized blocks with four replicates....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pennisetum glaucum; Water reuse; Nutrient absorption; Photosynthesis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100242