Banca de DEFESA: NATALINO DA SILVA REIS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : NATALINO DA SILVA REIS
DATE: 29/11/2024
TIME: 15:00
LOCAL: Google Meet
TITLE:

PRODUCTIVE POTENTIAL OF CASSAVA VARIETIES IN THE STATE OF AMAPÁ

KEY WORDS:

Morphometry; Cassava farming; Amazon

PAGES: 60
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Pastagem e Forragicultura
SPECIALTY: Avaliação, Produção e Conservação de Forragens
SUMMARY:

Cassava itself (Manihot esculenta Crantz) had its origins in the South American lowlands and began to be domesticated approximately 9 thousand years ago. Cassava cultivation plays a predominant role in family farming by contributing to the food security of families living in rural areas, enabling the generation of work and income through the sale of the product or its derivatives. Brazil in 2022 produced 17,648,564 tons of cassava in a planted area of 1.18 million hectares. The state of Pará is the largest national producer with 4,157,308 tons and the state of Amapá is 25th among the federation units with a production of 119,197 tons, however, cassava is one of the most exploited crops in this region. State. The present study aims to evaluate the productive potential and agronomic characteristics of roots and aerial parts of cassava varieties depending on harvest age in the state of Amapá. A Randomized Block Design (DBC) will be used with 5 replications and 5 treatments, with the treatments being the five cassava varieties (T1= Jurará, T2= Formosa, T3= Manivão, T4=Farias, T5= Araguari), resulting in 25 experimental units, thus, the total number of plants will be 875 units, 175 plants of each variety. The collection of morphometric data will be carried out in two ways: non-destructive assessments every two months from planting and; destructive evaluations at 4, 8 and 12 months, where 2 plants will be subtracted from each plot at each established age. Samples of the collected material will be sent to the laboratory where they will be subjected to pre-drying in a forced ventilation oven at 55°C, for 72 hours, to determine the dry matter of each sample. The following will be evaluated: I) Production of green matter (t/ha) of the aerial part; II) Dry matter production (t/ha) of the aerial part; III) Whole plant green matter productivity in t/ha; IV) Whole plant dry matter productivity per ha; V) Tuberous root productivity in t/ha; VI) Productivity of tuberous roots in dry matter in t/ha; VII) Average percentage of each morphological components separated in the destructive evaluations; VIII) Quantity, diameter, weight and length of roots. In addition to economic analysis on the production costs of each variety evaluated. For statistical analysis, data will be tabulated and initially subjected to descriptive analysis. To check whether there was a difference between treatments, an analysis of variance will be carried out, in addition to comparisons of means using the Tukey test. The significance level considered will be 5% (P < 0.05).

COMMITTEE MEMBERS:
Presidente - 1331235 - THIAGO CARVALHO DA SILVA
Externo ao Programa - 1816979 - LEONARDO ELIAS FERREIRA - UFRAExterno à Instituição - NAGIB JORGE MELÉM JÚNIOR - EMBRAPA
Externo à Instituição - PAULO RICARDO DOS SANTOS - IFAP
Externo à Instituição - THOMAZ CYRO GUIMARÃES DE CARVALHO RODRIGUES - UFRA