Micorrização e adubação de mudas micropropagadas de antúrio, cv. Eidibel: crescimento e aclimatização ex vitro

Stancato, Giulio Cesare; Silveira, Adriana Parada Dias da

doi:10.1590/s0006-87052010000400022

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…Essa colonização pode proporcionar baixo crescimento vegetal ou até chegar a atingir uma condição de parasitismo, quando o balanço energético se torna desfavorável à planta. Stancato et al (2010) verificaram que a micorrização de plântulas micropropagadas de antúrio, tanto na fase de aclimatização quanto de obtenção de mudas, não promoveu crescimento.…”

Section: Resultsunclassified

Fungos micorrízicos no crescimento e nutrição de rebentos oriundos de coroa de abacaxi

Santos¹,

Freitas²,

Freitas³

et al. 2011

Rev. Bras. Frutic.

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A produção nacional de mudas de abacaxi tem sido caracterizada pela baixa oferta de material nos padrões recomendados. O uso da técnica de eliminação da dominância, apical aliado à utilização de fungos micorrízicos arbusculares (FMAs), pode proporcionar aumento na produtividade do viveiro e menor tempo de produção das mudas. Nesse sentido, o objetivo deste estudo foi avaliar a ação de FMAs no crescimento de rebentos de abacaxi originários através da técnica de eliminação do meristema apical, de coroas também inoculadas com estes FMAs. Utilizou-se o delineamento em blocos casualizados, num fatorial 2x3, com duas cultivares de abacaxi ('Smooth Cayenne' e 'Pérola') e três tratamentos microbiológicos (sem inoculação, inoculação com Glomus etunicatum e inoculação com uma mistura dos fungos Glomus clarum e Gigaspora margarita), com quatro repetições. Conclui-se que a inoculação com FMAs no crescimento das mudas não proporciona redução na fase de enviveiramento. A inoculação de FMAs na cultivar Pérola mostrou-se não benéfica, e o tratamento microbiológico com a mistura apresentou-se como parasita, reduzindo o teor nutricional de P e K, não sendo indicado para esta cultivar. Para o 'Smooth Cayenne', a inoculação com FMAs proporcionou incremento de P nas mudas.

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Section: Resultsunclassified

Fungos micorrízicos no crescimento e nutrição de rebentos oriundos de coroa de abacaxi

Santos¹,

Freitas²,

Freitas³

et al. 2011

Rev. Bras. Frutic.

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“…The application of Osmocote ® (NPK 15:10:10), with or without the addition of arbuscular mycorrhizal fungi (AMF), has shown that the exclusive use of SRF in the acclimatization of A. andraeanum 'Eidibel' promotes the best plantlet development (STANCATO;SILVEIRA, 2010). However, there is a lack of information in the literature concerning the use of these fertilisers in the acclimatization of micropropagated plantlets of A. maricense.…”

Section: Introductionmentioning

confidence: 99%

Doses of Osmocote® in the acclimatization of micropropagated plantlets of Anthurium maricense

Campos

Bomfim

Carvalho

et al. 2019

AGRO@MBIENTE ON-LINE

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Anthurium maricense is a tropical ornamental species with great commercial potential in the areas of landscaping and potted foliage plants. One of the main obstacles in the production of micropropagated anthurium plantlets is its slow development and/or the low survival rate of the plantlets during the acclimatization stage. The use of slow-release fertilisers (SRF) can accelerate this process; however, there are no reports in the literature concerning this practice during acclimatization of micropropagated plantlets of this species. As such, in the present study, the effects of different doses of SRF on the development of micropropagated plantlets of Anthurium maricense were evaluated during the acclimatization stage in a screenhouse. The experiment was carried out in a completely randomised design, with five treatments and four replications of four plantlets per plot. The treatments comprised doses of 0.0, 2.5, 5.0, 7.5 and 10.0 kg m-3 of the SRF Osmocote® (NPK 15:9:12) added to the substrate. The variables under evaluation were the variation in plant height, in the number of leaves and in the area of the largest leaf, pot occupancy, net photosynthetic rate, internal carbon, and leaf temperature and moisture. The use of SRF promoted better development of the micropropagated plantlets of A. maricense during the acclimatization stage. Of the variables under analysis, the variation in the area of the largest leaf is the most important, since the commercial interest of the studied species is the foliage, which was at its maximum with an estimated dose of Osmocote® of 6.40 kg m-3.

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“…Arbuscular mycorrhizal fungi (AMF) are an important microbial group of the soil, which form a mutualistic symbiosis with the roots of plants affecting several processes and functions in the ecosystem such as nutrient cycling, plant productivity and competition (Hazard et al, 2013). This microorganism have been used as an alternative to increase the resilience of many species during the acclimation process, stimulating the autotrophic stage of transition from in vitro to soil and influencing morphogenesis and architecture of root, ensuring a health formation and development of root system after transplanting (Zemke et al, 2003;Kapoor et al, 2008;Stancato and Silveira, 2010). Apart from this, AMF can act as biological controller of some pathogens and to reduce tensions as nutrition, availability of water and salinity involved on micropropagation (Schubert et al, 1990;Jaizme-Vega and Azcón, 1991).…”

Section: Introductionmentioning

confidence: 99%

Effect of arbuscular mycorrhizal fungi on survival and growth of micropropagated Comanthera mucugensis spp. mucugensis (Eriocaulaceae)

Pereira¹,

Santos²,

Alvim³

et al. 2017

Afr. J. Agric. Res.

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The use of micropropagation technique has been an alternative to conservation of endangered species, Comanthera mucugensis subsp. mucugensis (popular namely sempre viva de Mucuge); however, there is no information on the effect of arbuscular mycorrhizal fungi (AMF) on the acclimation process of micropropagated plants. This study evaluated the survival, growth and nutritional aspects of the species, C. mucugensis subsp. mucugensis inoculated with native AMFs in greenhouse condition. The design of the experiment consisted initially of 80 sampling units divided into four treatments: plants inoculated with native AMF, with microbiota filtrate from soil, with AMF plus filtrate and control (noninoculated plants). At three and eleven-month-old, the plants were collected for evaluation of growth, nutrition and mycorrhizal colonization. After eleven months of experiment, survival rate of AMF and AMF plus filtrate plants were 62.5 and 87.5%, respectively, and only one microbiota filtrate and one control plants survived. AMF inoculation also provided increase in n dry matter of rosettes and permitted obtaining flowering ten-month-growth plants. Rates of mycorrhizal colonization were high at three (aproximately 64.9%) and eleven (aproximately 94.5%) months for AMF and AMF plus filtrate plants. Number of spores in rhizosphere soil of mycorrhizal plants was also high (1599 per 100 dm 3 of soil) and seven diferent species of AMF were identified at the end of experiment. Data set evidenced mycortrophic character of C. mucugensis subsp. mucugensis and the importance of AMF inoculation for acclimation and survival of microprogagated plants which is essential for conservation of this endangered plant.

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Micorrização e adubação de mudas micropropagadas de antúrio, cv. Eidibel: crescimento e aclimatização ex vitro

Cited by 5 publications

References 25 publications

Fungos micorrízicos no crescimento e nutrição de rebentos oriundos de coroa de abacaxi

Fungos micorrízicos no crescimento e nutrição de rebentos oriundos de coroa de abacaxi

Doses of Osmocote® in the acclimatization of micropropagated plantlets of Anthurium maricense

Effect of arbuscular mycorrhizal fungi on survival and growth of micropropagated Comanthera mucugensis spp. mucugensis (Eriocaulaceae)

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