Growth and nutrient accumulation in mycorrhized papaya seedlings cultivated in a phosphorus-fertilized substrate

Author:

Almeida Dácio Jerônimo de1,Pereira Walter Esfrain1,Alexandre Patrícia da Silva1,Nunes Járisson Cavalcante1,Ferreira Wagner de Melo2

Affiliation:

1. Universidade Federal da Paraíba, Brazil

2. Universidade Federal do Tocantins, Brazil

Abstract

ABSTRACT The indiscriminate use of mineral fertilizers in papaya orchards has increased production costs, and the use of arbuscular mycorrhizal fungi is a promising alternative to reduce such expenses. Therefore, the present research aimed at studying the efficiency of arbuscular mycorrhizal fungi (AMF) on dry matter and nutrient accumulation in Sunrise Solo papaya seedlings, by applying doses of P2O5 (triple superphosphate) that are harmful to the symbiosis. The experiment was carried out in a protected environment and was set up in a randomized block design with four replications, and consisted of four P2O5 doses (0, 672, 1386 and 2100 mg dm-3), three mycorrhizal fungi species (Gigaspora margarita, Entrophospora colombiana and Scutellospora heterogama) and the control treatment (mycorrhiza-free). Shoot and root dry matter as well as nitrogen, phosphorus and potassium contents in leaf and root tissues were assessed. Mycorrhizal inoculation promoted a 30% increase in shoot dry matter in relation to the control treatment. Mycorrhizal fungi promoted increases in leaf and root nitrogen content up to 672 mg dm-3 P2O5. Inoculation of E. colombiana favored the highest gains in root and shoot dry matter. P2O5 fertilization increased foliar and root phosphorus content.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences,General Veterinary

Reference31 articles.

1. Anuário da agricultura brasileira,2011

2. Methods in microbiology;Barea JM,1992

3. The regulation of arbuscular mycorrhizal symbiosis by phosphate in pea involves early and systemic signalling events;Balzergue C;Journal of Experimental Botany,2011

4. Redução do mal-do-panamá em bananeira-maçã por inoculação de fungo micorrízico arbuscular;Borges AJS;Pesquisa Agropecuária Brasileira,2007

5. Mycorrhizal dependency of mangaba tree under increasing phosphorus levels;Cardoso Filho JA;Pesquisa Agropecuária Brasileira,2008

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