Banca de DEFESA: PHILIP MOAB DUARTE DE AMORIM

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : PHILIP MOAB DUARTE DE AMORIM
DATE: 11/02/2025
TIME: 09:00
LOCAL: UFAPE
TITLE:

FORAGE PALM CULTIVATED AT DIFFERENT PLANTING DENSITIES UNDER SUPPLEMENTARY IRRIGATION WITH SALINE WATER IN THE SEMI-ARID REGION OF PERNAMBUCO

KEY WORDS:

Keywords: Vegetative Growth, Production, Productivity, Productive Efficiency.

PAGES: 68
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Manejo e Tratos Culturais
SUMMARY:

ABSTRACT

Water supplementation in forage palm crops has shown a possible resource for the consequent increase in productivity. The objective was to evaluate plant density and water supplementation on the agronomic characteristics and productivity of forage palm in the Semi-Arid region. The experiment was conducted from January to September 2022 to 2024, at the Agronomic Institute of Pernambuco (IPA), Arcoverde Experimental Station - PE, located in the transition zone between the Agreste and Sertão regions of the state. The design was randomized blocks with a split-plot arrangement, in a 2 x 2 x 4 arrangement with three replications, the plot with 2 planting densities (8,333 and 66,666 plants ha-1) being 2 levels with water and without irrigation represented by the salinity level of the irrigation water (C4S2 and without water supplementation), 4 proportions of the reference evapotranspiration consisting of (0.25 ET0; 0.50 ET0; 0.75 ET0 and 100 ET0), using the forage palm of the species Opuntia stricta Haw. var. Orelha de Elefante Mexicana (IPA-200016). The density decreased the height, width and number of cladodes of the plant. The percentage of dry matter was higher when in the dense system. The production of green and dry matter was reduced with the density. Densification increased the cladode area index as well as productivity when in a rainfed system. The treatment without water supplementation was better in all variables analyzed, with densification being superior. In general, the conventional system with 75% ETO transparency presented the best results for most of the variations demonstrated, mainly for the production of green and dry matter, which are the main objectives of cactus production. On the other hand, although the dense system demonstrates drought tolerance, its productivity is severely limited.

COMMITTEE MEMBERS:
Presidente - ALBERICIO PEREIRA DE ANDRADE
Externo à Instituição - ANTÔNIO CLEMENTINO DOS SANTOS
Externo à Instituição - CLEYTON DE ALMEIDA ARAÚJO - UNIVASF