Name: ALEX SILVA LIMA
Publication date: 28/04/2022
Advisor:
Name |
Role |
|---|---|
| MARCELO BARRETO DA SILVA | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| MARCELO BARRETO DA SILVA | Advisor * |
| WILLIAN BUCKER MORAES | Internal Examiner * |
Summary: Coffee growing is an agricultural activity that has great socioeconomic importance, and
it is essential to maintain its productive capacity against the occurrence of diseases
that interfere with its development, among which those caused by nematodes stand
out. The objective of this work was to evaluate different treatments in the population
management of nematodes (Meloidogyne incognita) in conilon coffee (Coffea
canephora Pierre ex Froehner) and possible effects on plant vegetative development
and productivity. The experiment was carried out in a coffee plantation naturally
infected by the pathogen, in a randomized block design, with five treatments and six
replications. Four evaluations of the population of nematodes in the soil and roots of
coffee were carried out, for later evaluation of the reproduction factor. The vegetative
development of plants was evaluated by periodically measuring the growth of
previously marked orthotropic and plagiotropic branches and plant productivity was
performed by harvesting the grains in July 2021. The treatments used provided a
reduction in the reproduction factor of Meloidogyne incognita in the roots of conilon
coffee plants in all periods evaluated, after the first and also after the second
application of the products, while Cadusafos 200.0 g/L was responsible for the greater
multiplication of the population of M. incognita in the soil after two applications. The
treatment based on organomineral phosphate fertilizer provided better vegetative
growth of conilon coffee, with higher growth values of orthotropic and plagiotropic
branches, however, none of the treatments influenced the productivity of conilon
coffee.
