Banca de QUALIFICAÇÃO: PAULO HENRIQUE DE OLIVEIRA VELOZO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : PAULO HENRIQUE DE OLIVEIRA VELOZO
DATA : 08/04/2022
HORA: 08:00
LOCAL: Web Conferência - Google Meet
TÍTULO:

Environmental modifications and their influence on tomato production, quality and ecophysiology in the Amazon region of Mato Grosso

PALAVRAS-CHAVES:

Environment, Protected cultivation, Covering materials, Temperature, Tomato crop.

PÁGINAS: 52
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The challenges encountered in growing vegetables in the open air, added to the ongoing climate changes, result in the need to develop environmental control mechanisms, adapted to different climatic conditions, in regions with intense availability of solar energy and high temperature, means are needed of control that change the environment without harming the quality and productivity of crops. The present study aimed to evaluate the effects of a cultivation environment, with an experimental roof, covered by alveolar polycarbonate (PL) plates, through which a sheet of fluid water was applied, and compared to a conventional cultivation environment covered with agricultural film (AF), under the tropical climatic conditions of the Mato Grosso Amazon. The environments were cultivated with the Fascínio Italian-type tomato hybrid in pots, at 20, 30, 40, 50 and 60 cm spacing, from June to October. In the PL environment, a reduction of 42% of the transmissivity of the global radiation, 26% of the PAR radiation, 1°C in the average ambient temperature, 5°C in the average temperature of the leaves and a lower transpiration rate was verified. In the FA environment, higher photosynthetic rate, stomatal conductance, concentration of phenols, β-carotene, chromaticity and production of small fruits were observed, while fruits with larger diameter and greater average fruit mass were observed in the PL environment, as well as higher production of lycopene, activity antioxidant, greater leaf area and plant height. Regarding average relative humidity, total production, commercial production, number of commercial fruits, % of loss, dry mass of leaves and stems, stem diameter, °Brix, texture and angle h°, there were no significant differences between environments. Regarding commercial productivity, the 20 cm treatment stood out with the highest average of 144 t/ha^-1 followed by the 30 cm treatment with 114 t/ha^-1.

MEMBROS DA BANCA:
Presidente - 117161001 - SANTINO SEABRA JUNIOR
Interno - 96420004 - IVONE VIEIRA DA SILVA
Externo ao Programa - 856.728.821-53 - RENE ARNOUX DA SILVA CAMPOS - UNESP