SILVA NETO, A. N.; http://lattes.cnpq.br/4711062010422637; SILVA NETO, Alfredo Nogueira da.
Resumen:
Anthracnose is considered the most important disease in papaya postharvest
and occurs in all producing countries. Although it occurs in fruits at any stage of
development, presents with greater frequency in mature. This study aimed to
evaluate the effect of potassium phosphite doses /rl v/fro and /rl v/vo control of
the causal agent of anthracnose as well as the effects of the product as in
papaya. The experiment was conducted in the Laboratory of Plant Pathology
and Agricultural Products Technology Center of Science and Technology
Agrifood (CCTA) at the Federal University of Campina Grande (UFCG), campus
of Pombal-PB. The /rl v/fro and /n v/vo using a completely randomized design,
which first had 7 treatments (doses 0, 0.2. 0.4, 1, 2, 4 and 8 ml L'l) and 6
repetitions, totaling 42 experimental units which assessed the inhibition of
mycelial growth of Co//efofrfchum sp, was later made the /r7 v/L'o test that
evaluated the effect of phosphite on anthracnose and quality tests individually
with 5 treatments (doses 0; 1, 2, 4:and 8 ml L'l) and 8 repetitions, totaling 40
experimental units for each experiment. In /n v/fro tests, the servings of
potassium phosphite (1 , 2, 4 and 8 ml.L'l) afforded inhibition of mycelial growth
of Co//efofrfchum sp, on the order of 52,98.l 67,841 59,56 and 69,01%,
respectively. /n v/vo test, after 8 days of incubation. only doses 4 and 8 ml.L''
have led reduction in lesion área caused by Co//efofr7cht/m sp. in fruits of
papaya. The application of potassium phosphite in the doses used in this study
did not affect the external appearance characteristics and titratable acidity in
papaya fruits 'Golden'.
