Eficiência micorrízica na produção de mudas de jacarandá-dabahia cultivadas em diferentes doses de fósforo

Chaves, Lúcia de Fátima de Carvalho; Borges, R. de C. G.

doi:10.4025/actasciagron.v27i4.1303

Cited by 4 publications

(1 citation statement)

References 14 publications

(10 reference statements)

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“…Phosphorus in the plant stimulates root growth and ensures vigorous growth (Malavolta et al, 1997), as observed in this study. Chaves & Borges (2005) also found increasing linear values for D. nigra not inoculated with mycorrhizae. Santos et al (2008) reported that pioneer and climax species showed linear growth up to a dose of 800 mg kg -1 of P, being responsive to phosphorus application.…”

Section: Growthmentioning

confidence: 73%

Liming and Phosphating in Dalbergia nigra (Vell.) Allemão ex Benth. Seedlings

Carlos

Venturin

et al. 2018

Floresta Ambient.

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This study aimed to verify the effect of phosphorus and liming doses on the morphological and nutritional characteristics of D. nigra seedlings. The experiment was conducted using a completely randomized 4x4 factorial design. The treatments consisted of 4 levels of liming and 4 phosphorus doses. Morphological characteristics and nutritional analyses of plants were measured. There were no significant interactions between liming x P. Morphological characteristics presented differences for liming and phosphorus when analyzed separately. The best productive performances were found between an increase in base saturation between 48.07% and 54.76%. Morphological characteristics showed a linear behavior for P. Both the application of liming and P promoted positive effects on D. nigra growth.

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Section: Growthmentioning

confidence: 73%

Liming and Phosphating in Dalbergia nigra (Vell.) Allemão ex Benth. Seedlings

Carlos

Venturin

et al. 2018

Floresta Ambient.

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Fungos micorrízicos arbusculares nativos e doses de fósforo no desenvolvimento do amendoim RUNNER IAC 886

et al. 2011

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Resumo -Objetivou-se avaliar a interação entre fungos micorrízicos arbusculares nativos (FMA) com plantas de amendoim (Arachis hypogea) cultivar RUNNER IAC 886, em diferentes doses de fósforo (P). O experimento foi conduzido em casa de vegetação em delineamento inteiramente casualizado, em esquema fatorial (2 x 5), sendo com e sem a inoculação dos endófitos e cinco doses de P (0; 20; 40; 60 e 180 mg kg -1 na forma de KH 2 PO 4 ), com quatro repetições. Avaliaram-se massa seca de: raiz, parte aérea, total, taxa de colonização radicular (CR), dependência micorrízica (DM) e eficiência micorrízica (EM). Concluiuse que as doses crescentes de adubação fosfatada promoveram aumento no desenvolvimento das plantas de amendoim. Os FMA promoveram a produção máxima de massa seca total do amendoim na dose estimada de 114,0 mg kg -1 de P. A maior colonização radicular e eficiência micorrízica foram verificadas na dose 60 mg kg -1 de P. Palavras-chave -Amendoim. Adubação. Fertilizantes fosfatados. Fungos micorrízicos arbusculares.Abstract -The objective was to evaluate the interaction between native arbuscular mycorrhizal fungi (AMF) with peanut plants (Arachis hypogea) RUNNER cultivar IAC 886, at different levels of phosphorus (P). The experiment was conducted in a greenhouse in a randomized design in factorial (2 x 5), with and without inoculation of AMF and five P levels (0; 20; 40; 60 and 180 mg kg -1 in the form of KH 2 PO 4 ) in four replications. Shoot, root and total dry mass, root colonization, mycorrhizal dependency and mycorrhizal efficiency were evaluated. It was concluded that increasing levels of phosphorus caused an increase in the development of peanut plants. The AMF promoted maximum production of total dry mass of the peanut in estimated dose of 114.0 mg kg -1 of P. The highest root colonization and mycorrhizal efficiency were observed at 60 mg kg -1 of P.

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