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Procurando encontrar um teste de campo rápido e prático para identificar a presença do virus da exocorte em plantas cítricas, foram feitas sôbre-enxertias no viveiro e no pomar em plantas portadoras do virus, usando borbulhas de limoeiro cravo e de trifoliata. Em cinco meses apareceram os sintomas da exocorte nos ramos de limoeiro cravo e em 6-7 meses nos de trifoliata. Inoculando pés francos de limoeiro cravo, no viveiro, com borbulhas portadoras do virus e provocando a formação de ramos novos e vigorosos nessas plantas, os sintomas da exocorte apareceram nesses ramos quatro meses depois da inoculação. Êste último parece ser o melhor e mais rápido teste de campo para a exocorte, até agora descoberto. Identification of the presence of exocortis virus in citrus trees have been based on the bark splitting symptoms showed in die trunk of trifoliate and Rangpur lime rootstocks within a period of 4-8 years. As a result of several tests made at the Liineira Experiment Station a very quick and efficient procedure was found to induce exocortis symptoms. By inoculating (budding) in the nursery vigorous Rangpur lime seedlings and cutting them back it was possible to see exocortis symptoms in the new sprouts growing from them within 4 months. These symptoms are yellow elongated blotches and splitting of the bark. This procedure seems to be the best and quickest field test for exocortis in a bud wood certification program

Um rápido teste de campo para exocorte