Recomendacoes tecnicas sobre gergelim; regiao Centro-Sul do Brasil. EMBRAPA. Centro Nacional de Pesquisa do Algodao (Campina Grande, PB). DESEMPENHO AGRONÔMICO DE GENÓTIPOS DE GERGELIM (Sesamum indicum L.) SOB Pesquisadora, Doutora, EMBRAPA, CNPA, Campina Grande. O trabalho foi realizado em dezembro de , na Embrapa Algodão, de onde foram retirados discos foliares de gergelim para serem mensurados os índices.
Cell membrane integrity evaluation, based on electrolyte leakage, was expressed as percentage of conductivity in relation to the total conductivity.
Data corresponding to the following variables were collected: Then, plants were air-dried for embraps days to facilitate the removal gergdlim seeds from the capsules.
Water deficit is closely related to the loss of pigments and, consequently, to the reduction in the photosynthetic and productive capacity of plants. Juvenile growth in three vines in India. However, no studies were found on the determination of physiological and biochemical variables in genotypes of sesame under different water depths.
Chlorophyll meter evaluation for nitrogen management in corn. Sesamol, with its antioxidant properties, promotes high chemical stability in the oil, preventing rancidification.
In this context, this study aimed to evaluate the physiological, biochemical and productive behavior of sesame genotypes as a function of different rates of water replacement. De acordo com Markwell et emnrapa.
Recomendacoes tecnicas sobre gergelim; regiao Centro-Sul do Brasil.
How to cite this article. Os dados corroboram os de Argenta et al. Along the experimental period, temperature, relative humidity, wind speed and rainfall data Table 1 were collected at the Embrapa Cotton Meteorological Station, in Barbalha-CE.
Nevertheless, reduction in carotenoids combined with low content of chlorophyll a in the leaves of plants subjected to both absence and excess of water may contribute to increasing the injuries to the photosynthetic mechanism, leading to limitations in growth, development and production. Journal of Tropical Ecology, v.
All evaluations, except of production, were carried out at 90 days after emergence DAE. Revista Brasileira de Fisiologia Vegetal, v. A method for the extraction of chlorophyll from leaf tissue without maceration.
Processo de elaboração de extrudados não expandidos (pellets) de milho e sementes de gergelim.
In special, to Dr. Such reduction in the activity of the enzymes in plants subjected to water stress conditions may be an indication of non-adaptation to the stressful environment, with effect on crop yield.
Revista Brasileira de Fruticultura, v.
Services on Demand Journal. The genotypes did not differ statistically and there were differences in the variables between the water replacement gergellm. Adaptation and acclimation mechanisms. According to Sharma et al. A method for the extraction of chlorophyll from leaf tissue without maceration. Canadian Journal of Botany, v. In this context, it can be inferred that plants with lower contents of this pigment would be more subject to damages caused by the excess of light to the photosystem.
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Yield was estimated based on the production obtained in the evaluation area of the experimental plot. How to cite this article. Total leaf area cm 2 was determined by measuring the length and width of leaflets and embrapq the equation proposed by Silva et al. An evaluation of noninvasive methods to estimate foliar chlorophyll embtapa.
The region has mean rainfall of mm, mean air temperature of Forest Ecology and Management, v. Sesame genotypes did not differ statistically and there were differences in the variables between the water replenishment rates. Irrigation depth Li and irrigation time Ti were calculated according to Mantovani et al.
Stress responses in plants: Maximum estimated activity ABSTRACT The sesame crop has stood out due to the high nutritional content of its seeds, in addition to being able to be cultivated in the tropical and subtropical regions such as Northeast Brazil. O produtor pergunta, a Embrapa responde. Hence, analysis of photosynthetic pigments is essential to evaluate the health and integrity of internal cell apparatus during photosynthesis Ejbrapa amp; Zeiger, ; Rigon et al.
The sesame crop is resistant to drought and embeapa produce with mm of water well distributed along the cycle Bernardo et al.
Chlorophyll bconsidered as accessory pigment, is a biochemical compound present in the chloroplasts that help light absorption. Journal of Botany, v.
Its production is directly associated with chlorophyll a production Silva et al. Maximum yields found with intermediate water depths may be directly associated gergeliim the improvements observed in physiological and biochemical processes, such as the water content in the leaves.
Oil content in the seeds was quantified by nuclear magnetic resonance NMR enbrapa, based on non-destructive gergellm, in which the value found results from the magnetic field scanning of the sample Oxford Instruments, The sesame crop has stood out due to the high nutritional content of its seeds, in addition to being able to be cultivated in the tropical and subtropical regions such as Northeast Brazil.
Increased water replacement in the soil resulted in decreases of Chlorophylls ab and total, and carotenoids were extracted using the solvent dimethyl sulfoxide Hiscox amp; Israelstam, Chlorophyll is one of the main factors related to plant photosynthetic efficiency and, consequently, to growth and adaptability to different environments and conditions caused by the various types of stress. For the interaction irrigation depth x genotypes, there was no significance.
Crescimento e produtividade da cultura do gergelim Sesamum indicum L. For the content of carotenoids, maximum estimated value Determining the content of carotenoids in bergelim subjected to some sort of stress is very important, due to their role in the gerge,im of the energy intercepted.