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Revista mexicana de micología

versão impressa ISSN 0187-3180


SANGABRIEL-CONDE, Wendy et al. Colonization potential of arbuscular mycorrhizal fungi in soil cultivated with papaya under different production management. Rev. Mex. Mic [online]. 2010, vol.31, pp.45-52. ISSN 0187-3180.

An experiment was conducted in Isla town, at the southern region of the State of Veracruz, Mexico. The arbuscular mycorrhizal fungi potential was evaluated using soil of three papaya plantations (Maradol type), with different agricultural management systems classified as: high technology (AT), median technology (MT) and low technology (BT), and a control plot (PT) with Cynodon dactylon L (Fam. Poacea) grass. Two soil samples were collected, one in autumn and the other in winter. Corn seeds were sown in pots, with five different dilutions (100 to 10-4) of sterilized soil and sand. The mycorrhizal colonization and the infective potential were evaluated after six weeks with the most probable number (MPN) method. There were not significative differences at the interaction level of technology and sampling season. The highest mycorrhizal colonization percentage in the field was registered in PT, which showed a larger infective potential on both seasons of sampling, with a higher number of propagules/g soil for autumn (1122.5 ± 433.1-2842) and winter (431.3 ±170.3-1092.22). The AT plot showed a low (colonization potential 10.9 ±4.3-27.6).The results showed that the soil use and management influence the number of infective propagules.

Palavras-chave : Infectivity; mycorrhizal colonization; propagules.

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