Banca de DEFESA: MAYARA DA SILVA OLIVEIRA MORAES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MAYARA DA SILVA OLIVEIRA MORAES
DATE: 27/06/2025
TIME: 08:30
LOCAL: webconferência
TITLE:

ACTION OF ORGANIC COMPOUNDS AND BIOSTIMULANTS IN THE FORMATION PROCESS OF PAPAYA SEEDLING

KEY WORDS:

Carica papaya. Organic System. Waste. Organosol. Seedling production.

PAGES: 61
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Manejo e Tratos Culturais
SUMMARY:

The use of organic waste from industries and urban areas is not uncommon in agriculture. This practice constitutes an alternative to increasing soil fertility, an essential factor in the establishment of orchards, in addition to configuring a method of mitigating liabilities that cause environmental damage. Specifically, in papaya (Carica papaya L.) cultivation, substrates derived from the use of residues have great potential in terms of preparing and obtaining seedlings, as well as improving soils in cultivation areas. Therefore, the present work aims to evaluate variations of organic compounds produced by the company Organosolo as a substrate for the production of papaya seedlings. The experiment will be carried out in a greenhouse, at the Department of Phytotechnics, Institute of Agronomy, Federal Rural University of Rio de Janeiro (DFito/IA/UFRRJ). The experimental design will be Randomized Blocks (DBC), in a factorial scheme (5 in addition to two others to be defined, respectively, the treatments: T4 and T5 and as a secondary factor, two biostimulants will be applied in aqueous suspension: Trichoderma and Azospirillum, with the third treatment, the control, pure water. Over time and/or until the plants reach the flowering stage, the following biometric parameters will be evaluated: plant height (H), stem diameter (D), number of leaves (NF), number of nodes (NN ), leaf width (LF), leaf length (CF), leaf area (AF) and chlorophyll content (CLO). At the end of the experiment, that is, after the flowering stage, the fresh mass of the aerial part (MFA), dry mass of the aerial part (MSA), fresh mass of the root (MFR), dry mass of the root (MSR) will also be evaluated. ) and the Dickson Index (IQD). The aim is to gather information that will allow the improvement of agricultural practices related to papaya cultivation, as well as verify possible impacts associated with variations in substrates on seedlings.

COMMITTEE MEMBERS:
Presidente - 1863063 - LUIZ AURELIO PERES MARTELLETO
Externo ao Programa - 988442 - MARCO ANTONIO DA SILVA VASCONCELLOS - UFRRJExterno à Instituição - LEONARDO CIUFFO FAVER