Banca de QUALIFICAÇÃO: ALVARO DA COSTA FREIRE

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ALVARO DA COSTA FREIRE
DATE: 27/08/2020
TIME: 15:00
LOCAL: meet.google.com/yvy-ukwb-djz
TITLE:

Vegetative propagation by mini-cuttings of variety with acúleo and without acúleo of the species (Mimosa caesalpiniifolia BENTH)

KEY WORDS:

Auxin, Clonal forestry, Seedling production, Mini-garden productivity.

PAGES: 24
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUMMARY:

The minicutting is an economic technique of vegetative propagation because it does not require large areas for seedling production. In addition, its use becomes useful in the production of seedlings of native species with phenotypic characteristics of commercial importance. In this sense, the objective was to evaluate the technique in question with two varieties, one with acúleo and the other without acúleo, of the species M. caesalpiniifolia. The mini-garden was established from selected genotypes based on the factors presence and absence of acúleo. Sprouts    10 cm long were collected and staking occurred in 55 cm³ tubes containing organic substrate. The productivity of the mini-garden was verified by counting the number of shoots and survival every 60 days. In the rooting of the minicuttings, the concentrations were tested: 0, 2000, 4000 and 8000 mg/L^-1 and the data obtained were submitted to variance analysis and compared from the Tukey test at the level of 5%. The survival of the mini-garden was 100% for the mini-quotes with and without acúleos. For the mini-strains, regardless of the variety, there was a decrease in the production of shoots over the 240 days. The use of IBA did not influence the rooting and survival of minicuttings in the variety with acúleos, however, for the variety without acúleos it is necessary to use auxin at concentration 8000 mg/L-1 In view of the above, minicutting is a vegetative propagation technique that can be used in the propagation of varieties with acúleo and without acúleo of the species  M. caesalpiniifolia.

BANKING MEMBERS:
Interna - 025.352.445-86 - POLIANA COQUEIRO DIAS - UFERSA
Externa ao Programa - 1516627 - JULIANA ESPADA LICHSTON
Externo à Instituição - RICARDO GALLO