Absorção de fósforo em doze genótipos de milho inoculados com fungo micorrízico arbuscular em solo de cerrado

Reis, Edésio Fialho dos; Júnior, Orivaldo José Saggin; Rotta, Douglas André; Sousa, Mohamad Yussef

doi:10.1590/s0103-84782008005000009

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…In this context, considering the practical use of AMF in agriculture, P contents in the soil must be maintained within a range that does not inhibit the efficiency of mycorrhizal symbiosis. In the present study, colonization inhibition occurred at the highest P dose of 480 mg dm -3 , which is in alignment with other works, depending on the genetic characteristics and nutritional status of the plant, as well as on the degree of dependence of the mycorrhizal association (Reis et al, 2008;Hausmann & Hawkes, 2009;Smith & Smith, 2011;Liu et al, 2016).…”

Section: Resultssupporting

confidence: 92%

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi

Nunes

Júnior

Silva

et al. 2019

Pesq. agropec. bras.

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The objective of this work was to evaluate the effect of the use of steel slag as a soil acidity corrective and of mycorrhizal fungi associated with phosphate fertilization on corn plants. The study was performed in a greenhouse, using 3-kg pots with a Typic Haplorthox, in a 4x5x2 factorial arrangement, with four acidity correction treatments (C1, correction with dolomitic limestone at a dose of 4 Mg ha-1; C2, correction with steel slag at a dose of 4 Mg ha-1; C3, correction with a 1:1 mixture of 2 Mg ha-1 dolomitic limestone and 2 Mg ha-1 steel slag; and C4, control, without pH correction), five phosphorus doses (0, 42, 95, 213, and 480 mg dm-3), and the presence or absence of two arbuscular mycorrhizal fungi (Rhizophagus clarus and Gigaspora margarita), with five replicates. Steel slag was efficient in correcting soil pH and providing Ca and Mg for the plants; therefore, it could replace limestone. The inoculation with R. clarus and G. margarita, associated with P doses of 42, 95, and 213 mg dm-3, improved the development of corn plants after 45 days, resulting in greater plant height, stem diameter, leaf area, and shoot and root dry matter.

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Section: Resultssupporting

confidence: 92%

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi

Nunes

Júnior

Silva

et al. 2019

Pesq. agropec. bras.

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“…Only C. etunicatum stood out as the species that most provided benefits to this crop in the absence of colonization stimulant. These results may be related to the genetics of the studied cultivar, since most are developed for growth with high fertilization, losing capacity to express and respond to biological resources, such as AMF, a fact reported in the literature and that corroborated the present study (REIS et al, 2008).…”

Section: Resultssupporting

confidence: 86%

Arbuscular mycorrhizal fungi and colonization stimulant in cotton and maize

Salgado¹,

Moreira

Siqueira

et al. 2017

Cienc. Rural

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The objective of this study was to evaluate the effects of inoculation with different arbuscular mycorrhizal fungi native to Cerrado, associated with the application of colonization stimulant (7-hydroxy, 4’-methoxy-isoflavone) at the initial growth of cotton and maize plants in a greenhouse. The experiment was carried out in a completely randomized design and 7x2 factorial scheme, with five species of arbuscular mycorrhizal fungi and combined inoculation (uniting all species in equal proportion) and native fungi, in the presence and absence of colonization stimulant in maize and cotton crops. Shoots dry matter (SDM), roots dry matter (RDM), mycorrhizal colonization and accumulation of calcium, zinc and phosphorus in the SDM were evaluated at flowering. Inoculation of arbuscular mycorrhizal fungi and the use of colonization stimulant at low density of arbuscular mycorrhizal fungi propagules was beneficial to plant development. Inoculation with mycorrhizal fungi demonstrated different effects for the various parameters evaluated in cotton and maize, and the application of colonization stimulant promoted higher mycorrhizal colonization and initial growth in cotton, when associated with native AMF, and in corn, when associated with inoculation with Dentiscutata heterogama, Gigaspora margarita and Rhizophagus clarus.

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“…The lower MCR (Table III) at high rates of P occurred because, when plants are nutritionally provided for, especially with P, they diminish stimulation for mycorrhizal colonization (Nogueira & Cardoso 2007, Reis et al 2008, Balota et al 2012, Balzergue et al 2013). In fact, in mycorrhizal symbiosis, host plants provide photoassimilates to the fungi, while they supply the plants with nutrients and water.…”

Section: Discussionmentioning

confidence: 99%

Formononetin accelerates mycorrhization and increases maize production at low phosphorus application rates

Santos

Ribeiro

Carneiro

et al. 2020

An. Acad. Bras. Ciênc.

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The formononetin biostimulant may be an option for reducing P fertilization once it stimulates mycelial growth of arbuscular mycorrhizal fungi and increases plant ability to take up nutrients through the roots, especially phosphorus. The objective of this study was to evaluate the effect of formononetin associated with phosphorus fertilization in maize. Field experiments were conducted in a randomized block design with a 3 × 4 factorial arrangement (0, 50 or 70, and 140 kg ha -1 P 2 O 5 ; and formononetin application rates: 0, 25, 50, and 100 g ha -1 ), with four replications. Formononetin (100 g ha -1 ) increased the mycorrhizal colonization rate up to 30% in maize in the fi rst four weeks after emergence when no P fertilizer was applied, and to 17% when 50 or 70 kg ha -1 of P 2 O 5 were applied. The application of 50 and 100 g ha -1 of formononetin signifi cantly increased plant height, ear height, and grain yield (22% -76%) when no P fertilizer was applied. The use of formononetin in the fi eld stimulates mycorrhizal colonization, has a positive effect on maize yield, and reduces the need for P fertilizer application in maize.However, this effect was evident only at low P soil contents.

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Absorção de fósforo em doze genótipos de milho inoculados com fungo micorrízico arbuscular em solo de cerrado

Abstract: Absorção de fósforo em doze genótipos de milho inoculados com fungo micorrízico arbuscular em solo de cerrado.

Cited by 4 publications

References 16 publications

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi

Arbuscular mycorrhizal fungi and colonization stimulant in cotton and maize

Formononetin accelerates mycorrhization and increases maize production at low phosphorus application rates

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