Banca de DEFESA: ELLEN CRISTINA MAGALHÃES NACANISHI

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ELLEN CRISTINA MAGALHÃES NACANISHI
DATA : 26/01/2024
HORA: 15:00
LOCAL: online
TÍTULO:

EMERGENCE AND GROWTH OF PLANTS OF Trichilia catigua A. Juss.1929, IN DIFFERENT TREATMENTS

PALAVRAS-CHAVES:

Flooded forests; Cachuá vermelho; Pre-soaking; Seedling quality; Native plants

PÁGINAS: 60
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Aplicada
RESUMO:

The species Trichilia catigua A.Juss. belongs to the Meliaceae family, with a geographical distribution in Brazil from Minas Gerais to Rio Grande do Sul and in the countries of Argentina, Paraguay and Bolivia. Also found in the flooded forests of the Mato Grosso Pantanal, it has medicinal, insecticidal and phytochemical importance. Research into the production of native seedlings contributes to ecological restoration processes. The aims of this research were to evaluate the emergence of seeds in different treatments to overcome dormancy and the effects of different substrates on the development of T. catigua A.Juss. seedlings for seedling production. Two experiments were carried out on seed emergence, the first with six treatments: 24 hours on black tarpaulin (T1); immersion in water for 24, 12, 9 and 0 hours (T2, T3, T4 and T6); and control (T5). The second also had six treatments: Immersion in water for 24, 12 (T1 and T2); and Control (T3), all three with aril (pulp), and Immersion in water for 24, 12 and 0 hours (T4, T5 and T6), all without aril. Percentage emergence (%E) and mean emergence time (TME) were assessed. The results indicate that treatment T2 (12 hours immersed in water), from experiment II, with the presence of aril, was the best at overcoming dormancy, as it had an emergence percentage of 99% and an average time of 54 days, so this treatment proved to be effective for the emergence of T. catigua A. Jus. seeds. Jus.  In order to understand the effects of different substrates on the development of T. catigua seedlings for seedling production, 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 substrates for the variables analyzed. The commercial substrate showed the best results for height, neck diameter and number of leaves, followed by the soil from the area where the species occurs, both substrates without foliar fertilizer.

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