Phytopathogenic fungi associated with avocado seed (Persea american Mill.)

A series of fungi diseases severe is disseminated by avocado seeds and they can decrease the production in approximately 14% and a reduction of quality in 10%. The present investigation consisted in to isolate and identify pathogens fungal present in the avocado seeds mexican race used for patron. T...

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Bibliographic Details
Authors: Leon Ttacca, Betsabe, Mattos Calderon, Leonor
Format: article
Status:Published version
Publication Date:2016
Country:Perú
Institution:Universidad Nacional del Altiplano
Repository:Revista de Investigaciones Altoandinas
Language:Spanish
OAI Identifier:oai:oai.huajsapata.unap.edu.pe:article/83
Online Access:https://huajsapata.unap.edu.pe/index.php/ria/article/view/83
Access Level:Open access
Keyword:Fusarium verticillioides
Lasiodiplodia theobromae
Persea americana
seed
semillas
Description
Summary:A series of fungi diseases severe is disseminated by avocado seeds and they can decrease the production in approximately 14% and a reduction of quality in 10%. The present investigation consisted in to isolate and identify pathogens fungal present in the avocado seeds mexican race used for patron. The fotopatogenos fungi were isolated in culture medium Sucrose Agar Potato from the embryo and cotyledon of 200 seeds of avocado and to identify with taxonomic keys also was carried out Pathogenicity test on avocado plants with the most frequent phytopathogenic fungi. The pathogens fungal isolated and identified from embryo and cotyledon of seeds were Lasiodiplodia sp. with 0.5% and 1.00%, and Fusarium sp with 1.50% and 2.50% of frecuency respectively. The pathogenicity test allowed confirming that Lasiodiplodia theobromae and Fusarium verticillioides affect to seedlings of avocado, being the source of primary inoculum and means of dissemination infected seeds by these pathogens.