Article Publish Status: FREE
Abstract Title:

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

Abstract Source:

An Acad Bras Cienc. 2020 ;92 Suppl 1:e20181371. Epub 2020 Jun 1. PMID: 32491139

Abstract Author(s):

Jessé V Dos Santos, Paula R A Ribeiro, Maria Angélica B Carneiro, Isaac C Soares, Ivan V A Fiorini, Leandro L Cancellier, Adriano D Veiga, Carlos Juliano B Albuquerque, Renzo G VON Pinho, Fatima M S Moreira

Article Affiliation:

Jessé V Dos Santos


Abstract: 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 P2O5; 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 first four weeks after emergence when no P fertilizerwas applied, and to 17% when 50 or 70 kg ha-1 of P2O5 were applied. The application of 50 and 100 g ha-1 of formononetin significantly increased plant height, ear height, and grain yield (22% - 76%) when no P fertilizer was applied. The use of formononetin in the field 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.

Study Type : Plant Study
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