Efeito do NaCI sobre o crecimento ea multiplicação in vitro de bananeira

Macêdo, Cristiane Elizabeth Costa de; Barroso, Paulo Augusto Vianna; Moura, Gioconda Emanuella Diniz de Dantas; Alloufa, Magdy Ahmed Ibrahim

doi:10.1590/s0100-29452005000200003

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…AAA), a concentration of 120 mM NaCl reduced the number and size of the buds and the regeneration rate of plants in vitro (Ulisses et al, 2000). With the Grand Naine cultivar, the increase in saline levels in in vitro cultivation significantly reduced leaf length, umber of leaves, fresh matter yield, shoot number and bud survival rate (Macêdo et al, 2005). Although the study was carried out on the banana tree, the studied cultivars and the doses of NaCl used were different from those used by Ulisses et al (2000) and Silva et al (2009), thus showing that the in vitro response is to cultivar-and dose-dependent.…”

Section: Introductionmentioning

confidence: 99%

Salinity-Induced Alterations in the Growth, Membranes and Osmolytes of Musa spp. cv. Caipira (AAA) During Micropropagation

Melo¹,

Trindade²,

Lopes³

et al. 2019

JAS

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The aim of this study was to determine the concentration and exposure time to NaCl suitable for the micropropagation of banana, through the analysis of growth traits. Banana propagules were inoculated in MS medium with different concentrations of NaCl (0; 50; 75 and 100 mM) for 120 days (multiplication and rooting, 60 days each), with monthly subcultures. These propagules were measured for plant height, number of leaves, sprouting rate, average number of formed propagules, rooting rate, root length and survival rate. After 30 days, NaCl reduced sprouting rate at multiplication; the number of leaves, rooting rate and root length in rooting; and the height and propagules number in both phases. After 60 days, the NaCl affected the sprouting rate and propagules number in the multiplication; length of root in rooting; and the height and number of leaves in both phases. After 120 days, the reduction in the survival rate was proportional to the increase of NaCl in the medium. Thus, it is concluded that NaCl reduces most of the growth traits and the treatments with 75 and 100 mM NaCl affected multiplication and in vitro rooting more intensely.

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Section: Introductionmentioning

confidence: 99%

Salinity-Induced Alterations in the Growth, Membranes and Osmolytes of Musa spp. cv. Caipira (AAA) During Micropropagation

Melo¹,

Trindade²,

Lopes³

et al. 2019

JAS

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Indicadores de estresse salino em abacaxizeiro cultivado na ausência e presença de fitorreguladores

Melo

Gomes²,

Dantas³

et al. 2011

Rev. Bras. Frutic.

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RESUMO -O objetivo do presente estudo foi avaliar o efeito de diferentes concentrações de NaCl nas fases de multiplicação e enraizamento in vitro do abacaxizeiro cultivar MD Gold. Brotos de abacaxizeiro foram inoculados em meio MS, na ausência e presença dos fitorreguladores ácido naftalenoacético (ANA) e 6-benzilaminopurina (BAP) e também de diferentes concentrações de NaCl (Controle -0; 50; 100 e 150 mM). Mensalmente, os brotos foram subcultivados e foram analisados altura média, número de folhas vivas e mortas, taxas de brotação e enraizamento. Durante a multiplicação e na ausência de ANA e BAP, o NaCl provocou significativa redução no crescimento e desenvolvimento de brotos de abacaxizeiro, expresso pela altura e pelo número de folhas, nas doses mais elevadas, contrariamente, na presença dos fitorreguladores. Durante os 60 dias iniciais, ocorreu aumento na produção de folhas. Contudo, aos 90 dias, observou-se decréscimo na média de folhas vivas nos brotos tratados com sal. O cultivo in vitro de abacaxizeiro em presença de sal é mais eficiente na presença de ANA e BAP, garantindo a manutenção do crescimento, aumentando o número de folhas, produzindo novas gemas e acelerando o processo de enraizamento. Termos para indexação: Ananas comosus, estresse salino, fitorreguladores, cultivo in vitro. SALINITY INDICATORS IN PINEAPPLE GROWN IN THE ABSENCE AND PRESENCE OF GROWTH REGULATORSABSTRACT -To assess the effects of salt on the pineapple MD Gold during the multiplication and rooting phases in vitro, this study evaluated its performance in different concentrations of NaCl in the absence or presence of growth regulators. Pineapple shoots were inoculated on MS solution in the absence and presence of the growth regulators naphthaleneacetic acid (NAA) and 6-benzlaminopurine (BAP) and different concentrations of NaCl (Control -0, 50, 100 and 150 mM). Monthly, shoots were subcultured and it was analyzed height, number of alive and dead leaves, and the rates of sprouting and rooting. During the multiplication in the absence of NAA and BAP, the NaCl treatments caused significant reduction in growth and development of pineapple shootings, expressed by the height and number of leaves, in the highest dose, which was not observed in the presence of growth regulators. During the first 60 days, an increase in leaf production occurred. However, after 90 days, there was a decrease in average living leaves in the shoots treated with salt. The in vitro cultivation of pineapple in the presence of salt is more efficient in the presence of NAA and BAP, ensuring continued growth, increasing the number of leaves, producing new buds and accelerating the process of rooting.

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Efeito do NaCI sobre o crecimento ea multiplicação in vitro de bananeira

Cited by 2 publications

References 13 publications

Salinity-Induced Alterations in the Growth, Membranes and Osmolytes of Musa spp. cv. Caipira (AAA) During Micropropagation

Salinity-Induced Alterations in the Growth, Membranes and Osmolytes of Musa spp. cv. Caipira (AAA) During Micropropagation

Indicadores de estresse salino em abacaxizeiro cultivado na ausência e presença de fitorreguladores

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