Banca de QUALIFICAÇÃO: ELISANGELA FRANCISCA DA SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ELISANGELA FRANCISCA DA SILVA
DATA : 01/03/2024
HORA: 14:00
LOCAL: Cáceres
TÍTULO:

EMERGENCE OF Mouriri guianensis AND USE OF DIFFERENT SUBSTRATES FOR PLANT DEVELOPMENT WITH POTENTIAL FOR THE ECOLOGICAL RESTORATION OF DEGRADED AREAS IN THE MATO-GROSSENSE PANTANAL

PALAVRAS-CHAVES:

Seedling Quality; Native Plants; Flooded Forests and Ecological restoration

PÁGINAS: 68
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

Mouriri guianensis Aubl belongs to the Melastomataceae family and is found in parts of South America, occurring in a wide variety of vegetation types. In Brazil, it is widely distributed in the phytogeographic domains of the Amazon, the Caatinga, the Cerrado, the Atlantic Forest and the Pantanal, where it is popularly known as roncador. The aim of this research was to evaluate the different types of treatments for breaking dormancy and the effect of different substrates and fertilizer use on the growth of M. guianensis seedlings. for seedling production. The seeds were divided for the germination tests into six treatments: removal of the tegument (T1), scarification of the seeds (T2), immersion in water for 12 hours (T3), immersion in water for 48 hours (T4), immersion in water for 288 hours (T5) and control (T6). The percentage of emergence (%E) and mean time to emergence (TME) were evaluated. The results show that the treatment with the highest percentage of emergence was T1 (63%), due to the removal of the tegument which allows for greater soaking by water and gas exchange, enabling a higher rate of seedling emergence in a shorter period of time. In order to understand the effects of different substrates on the development of M. guianensis seedlings for the production of seedlings in relation to the substrates, a randomized block experimental design was used, with 2 repetitions, one repetition without foliar fertilizer, and the other with 10-10-10 foliar fertilizer + Base - Fertilizantes® micronutrients, with three different types of substrates. The substrates evaluated consisted of 100% black soil (TP); 100% soil from the area where the species occurs (TO); 100% commercial substrate (CS). The variables height (H), neck diameter (CD) and number of leaves (NF) were evaluated for 120 days. Analysis of variance and Tukey's test at 5% probability were used to compare the means.  There was no interaction between the treatments for the variables analyzed. As for the substrates, there was a statistical difference and the commercial substrate showed the best results in terms of height and number of leaves without the foliar fertilizer.

MEMBROS DA BANCA:
Presidente - 66972005 - JOSUE RIBEIRO DA SILVA NUNES
Interno - 48690002 - SOLANGE KIMIE IKEDA CASTRILLON
Externo à Instituição - FERNANDO FERREIRA DE MORAIS - UFPB
Externo à Instituição - JOSÉ RICARDO CASTRILLON FERNANDEZ - IFMT