Magdy Ahmed Ibrahim Alloufa's research while affiliated with Universidade Federal do Rio Grande do Norte and other places
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Publications (4)
A salinidade dos solos é um importante fator de estresse, ocorrendo em regiões semi-áridas e áridas do Nordeste brasileiro, onde a bananeira é cultivada. O efeito de diferentes concentrações de cloreto de sódio (NaCl) foi estudado sobre a multiplicação e o crescimento in vitro de brotos de bananeira da variedade "Grand Naine", visando a uma posteri...
The effect of different ANA and BAP concentrations on in vitro and hydroponic cultures were studied. Pineapple shoots derived from Pérola explants variety were inoculated in MS media containing BAP and ANA in different concentrations. Growth parameters of shoots and plantlets were measured for in vitro and hydroponic cultures. Showed a highest mult...
Plant tissue culture has been used to induce and select genetic variability in order to increase the level of salinity tolerance in several species. Pineapple plants from Pérola and Smooth Cayenne varieties were micropropagated for six months in a medium with 0, 12.5 and 25 mM of NaCl and evaluated during the acclimatization phase to verify the cha...
Estudos de meios de cultura que facilitem a germinação de sementes recalcitrantes são de grande importância para a fruticultura. A mangabeira (Hancornia speciosa Gomez) é uma fruteira nativa da região Nordeste do Brasil. Sua propagação por métodos tradicionais é dificultada pelo fato de suas sementes serem recalcitrantes e a polpa do fruto ter uma...
Citations
... On average, each incision in the trunk can exhaust a very limited area of 13 cm above and 5 cm below the incision. Because the vessel system is restricted, the restoration of latex takes time before the next bleeding (Pinheiro et al., 2001). Adult mangaba trees (six years) can produce 1 L of latex per bleeding in 1 or 2 h of draining; however, they can only be bled up to three times a year to allow time for latex production recovery (Bekkedahl and Saffioti, 1998). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272784504913938-1442048302277_Q64/Cristiane-Macedo.jpg)
... No crescimento parte aérea, as melhores médias foram obtidas nas menores concentrações de NaCl, 0 g.L -1 ; 0,58 g.L -1 ; 1,77 g.L -1 , com médias de 77,35; 66,60 e 66,09 (mm) respectivamente e os menores valores foram obtidos nas concentrações de 1,17 g.L -1 e 2,34 g.L -1 de NaCl com 46,09 e 28,21 (mm), totalizando o decréscimo de todas as variáveis avaliadas com 63,52%, uma vez que, de acordo com Quando as plantas se desenvolvem sob salinidade, um dos sintomas mais característicos é a inibição do crescimento, devido a disrupção na homeostase do potencial de água e o desbalanço iônico na interface soloplanta, de forma que o aumento gradativo da concentração de cloreto de sódio torna a água e nutrientes cada vez menos disponível para a planta, o que em condições mais drásticas promove a toxicidade no vegetal (CORDEIRO, 2001;ZHU, 2001;MELO et al., 2014). Além disso, a redução do crescimento pode estar associada a alterações na divisão e expansão celular, onde, o acúmulo de sais na parede celular, reduz o turgor e, consequentemente, o crescimento da parte aérea e radicular (MACÊDO et al., 2005). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/281339841531909-1444088053950_Q64/Paulo-Barroso.jpg)
... These factors may even put the mollusks of the native fauna at risk of extinction. In addition, the fact that the mollusk does not present a food requirement makes it an imminent economic danger, due to the fact that it can voraciously devour crops, generating an economic impact in places that depend on natural fauna (BARROSO, 2003). According to Fischer and Colley (2010), the National Biodiversity Policy, which describes the regulation of measures to control, manage and eradicate invasive alien species in Brazil, is provided for in Decree 4,339 of August 22, 2002. ...
