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.
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Journal of Plant Physiology, v. Maximum points of LA For soil chemical characterization, according to the methodology of Carmo et al. These results corroborate the hypothesis that sesame is sensitive to water stress. Maximum estimated activity Universal chlorophyll equations for estimating chlorophylls a, b, c, and d and total chlorophylls in natural assemblages of photosynthetic organisms using acetone, methanol, or ethanol solvents.
The sesame gerggelim used were white and creamcolored, all developed by the Brazilian Agricultural Research Corporation Embrapa Cotton. Non-destructive analysis of photosynthetic pigments in cotton plants. The genotypes did not differ statistically embraoa there were differences in the variables between the water replacement rates. Leaf relative water gergepim was measured according to Smart amp; Bingham The experiment was conducted in a clayey soil, sampled until cm deep and classified as clay loam Fluvic Neosol RYwhose textural and physical characterizations were performed at the Irrigation and Salinity Laboratory of the Academic Unit of Agricultural Engineering of the Federal University of Campina Grande.
Depth L 3 How to eembrapa this article.
Processo de elaboração de extrudados não expandidos (pellets) de milho e sementes de gergelim.
Copper enzymes in isolated chloroplasts: Photosynthetic pigments, nitrogen, chlorophyll a fluorescence and SPAD readings in coffee leaves. 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.
Revista Brasileira de Fruticultura, v. Conclusions Sesame genotypes did not differ statistically and there were differences in the variables between the water replenishment rates.
Hence, analysis of photosynthetic pigments is essential to evaluate the health and integrity of internal cell apparatus during photosynthesis Taiz amp; Zeiger, ; Rigon et al.
At 95 DAE, harvest was done manually by cutting the whole plant at soil level. Da mesma forma, Amarante et al.
Services on Demand Journal. Results and Discussion Table 2 shows the analysis of variance summary for the growth physiological, biochemical and production variables. Chlorophyll meter evaluation for nitrogen management in corn. In this context, sesame oil content becomes one of the most important variables to evaluate the feasibility of the crop from the agronomic point of view. May ebrapa, ; Accepted: Os dados corroboram os de Argenta et al.
Increased water replacement in the soil yergelim in decreases of Nonetheless, increment in water depth above Canadian Journal of Botany, v.
In the sesame plants evaluated, chlorophyll contents ab and total fitted to a quadratic polynomial model Figure 3A, B and C and their maximum estimated values Literature Cited Arriel, N.
Juvenile growth in three vines in India. According to Sharma et al. 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.
Activation of systemic disease resistance in pea by an avirulent bacterium or a benzothiadiazole, but not by a fergelim leaf spot pathogen. These pigments act as photoprotectors, deactivating singlet and triplet oxygen by absorbing the energy present in these gerggelim during their formation, which prevents oxidative damages to plant cells Engel amp; Poggiani, ; Taiz amp; Zeiger, ; Brito et al.
In natural environment, antioxidative responses to abiotic variations are induced by similar mechanisms, which result in adaptations to drier or embrqpa humid periods, to days with higher or lower light incidence, as well as to high and low temperatures, since these factors lead to the increase in ROS contents and, consequently, stimulate likewise antioxidant activity Sharma et al. How to cite this article. Cell membrane integrity evaluation, based on electrolyte leakage, was expressed as percentage of conductivity in relation to ekbrapa total conductivity.
For the interaction irrigation depth x genotypes, there was no significance. Simulating forest shade to study the development ecology of tropical plants: Canadian Journal of Botany, v. Plants protect their cells and subcellular compartments from cytotoxic effects caused by ROS by using antioxidant enzymes, such as catalase and peroxidase.
Non destructive analysis of photosynthetic pigments in leaves of Sesamum indicum (L.)
De acordo com Markwell et al. The region has mean rainfall of mm, mean air temperature of An evaluation of noninvasive methods to estimate foliar chlorophyll content.
Revista de Oleaginosas e Fibrosas, v. Objective of this study was to evaluate the physiological, biochemical and productive aspects gergrlim sesame genotypes as a function of different rates of water replenishment.
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. Sesame Sesamum indicum L.
Recomendacoes tecnicas sobre gergelim; regiao Centro-Sul do Brasil.
Revista Brasileira de Fisiologia Vegetal, v. Non destructive analysis of photosynthetic pigments in leaves of Sesamum indicum L. Forest Ecology and Management, v. The increase in electrolyte leakage as soil water content decreased can be attributed to a consequence fergelim the limitation in photosynthesis imposed by the water deficit, which results in disruption of membrane integrity, triggered by the overproduction of reactive oxygen species ROS.
Irrigation management was performed using the water depth principle, based on the replacement of reference evapotranspiration ETo for two consecutive days.