Banca de DEFESA: LARYSSA ROBERTA ALVES FARIAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LARYSSA ROBERTA ALVES FARIAS
DATE: 10/09/2021
TIME: 09:00
LOCAL: Plataforma Online: Google Meet
TITLE:

AGRONOMIC PERFORMANCE OF THE CULTURE OF PEANUTS IRRIGATED WITH SALINE WATER CULTIVATED IN A PROTECTED ENVIRONMENT

KEY WORDS:

Production Function, Water blade, Fertilizing.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Engenharia Agrícola
SUBÁREA: Engenharia de Água e Solo
SPECIALTY: Irrigação e Drenagem
SUMMARY:

The implementation of areas with irrigated peanuts in the region is still limited due to water availability and little knowledge of this technique for this culture in the region. The implementation of irrigation in the crop allows the cultivation of two or more peanut cycles during the year, thus increasing the income of small farmers who are the main producers. The objective of this research was to evaluate the agronomic performance of peanuts in a protected environment, under the effect of different water depths and different levels of water quality. The experiment was carried out in a greenhouse in the experimental area of the Arapiraca Campus at UFAL. The experimental design was randomized blocks (DBC), with 4 replications, in a 5x5 factorial scheme, with 25 treatments, totaling 100 plots. The treatments represented five irrigation depths L1=50; L2=75; L3=100; L4= 125 and L5= 150% of crop Evapotranspiration correlated with saline water levels represented by S1 = 0.15; S2 = 1.15; S3 = 2.15; S4 = 3.15 and S5 = 4.15 dS/m. The determination of ETc was obtained using SLIMCAP. The method of localized irrigation with a drip system with an average flow of 2.5 L/h per dripper was used. The variables were evaluated: plant height (AP), number of stalks per plant (NHP), number of pods per plant (NVP), average pod length (CMV), average pod diameter (DMV), number of grains per pod (NGV), pod fresh weight (PFV) and pod dry weight (PSV), chlorophyll index (SPAD). The collected data were subjected to statistical analysis and surface graph plots using the R i386 statistical software. The results showed that the variables plant height index (AP), number of pods per plant (NVP), average length of pods (CMV) and chlorophyll index (SPAD) respond to the interaction of irrigation depth and water salinity levels . The number of stalks per plant (NHP), mean diameter of pods (DMV), volume of pods per plant (VVP) and green weight of pods (PVG), dry weight of pods (PSG) respond to lamina and salinity separately. The number of grains per pod responds significantly only to water salinity. The maximum production points for most variables were obtained with irrigation depths below 100% of ETc and salinity close to 0.15 dS/m.

BANKING MEMBERS:
Presidente - 1544058 - MARCIO AURELIO LINS DOS SANTOS
Externo à Instituição - INAJÁ FRANCISCO DE SOUSA - UFS
Externa à Instituição - DANIELLA PEREIRA DOS SANTOS
Externo à Instituição - SAMUEL SILVA - IFAL