Banca de DEFESA: CARLOS ALBERTO DA CUNHA OLIVEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : CARLOS ALBERTO DA CUNHA OLIVEIRA
DATA : 28/02/2020
HORA: 09:00
LOCAL: Cidade Universitária, Cáceres
TÍTULO:

Genotype of Tectona grandis L.f resistant to the phytopathogenic fungus Ceratocystis fimbriata

PALAVRAS-CHAVES:

Teak, genotype selection and resistance level.

PÁGINAS: 36
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
RESUMO:

The commercially planted forests of Tectona grandis L.f have been increasing in the state of Mato Grosso, due to the edaphoclimatic conditions that favor the vegetative development and mainly the gain in productivity of m3 / ha / year. These conditions also provide the appearance of several diseases and one that deserves mention is the fungus of the genus Ceratocystis, which initially colonizes the vascular exchange of the plant between the bark and the wood and prevents the passage of sap, causing the death of the tree. However, there are few genetic improvement works aimed at the selection of material with resistance and susceptible to diseases. In this sense, the work was to evaluate the genetic variability of 37 clonal teak genotypes in a greenhouse after inoculation of the pathogen isolate. The experimental design used was randomized blocks, with 3 replications and each plot composed of 3 plants, totaling 333 units. The seedlings were evaluated 120 hours after inoculation of the fungus Ceratocystis fimbriata for alternate days until completing 126 days, where the variables were measured: total height of the plant, diameter of the neck and the sizes of the lesions made by photogrammetry. However, being found different forms of manifestation of the pathogen in the genotypes, a large patch moving between the medulla and the conducting vessels, another with risks distributed linearly and randomly through the shaft, and an ellipse.

MEMBROS DA BANCA:
Presidente - 132048001 - LEONARDA GRILLO NEVES
Interno - 285519001 - THIAGO ALEXANDRE SANTANA GILIO
Externo à Instituição - SANDRA DA COSTA PREISIGKE - UENF