Banca de DEFESA: VERA LUCIA DUBEAUX TORRES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : VERA LUCIA DUBEAUX TORRES
DATE: 13/09/2023
TIME: 14:00
LOCAL: Sala 04 da Pós-graduação
TITLE:

AGROINDUSTRIAL YIELD OF DIFFERENT CANE PROFILES, UNDER THE AGROMETEOROLOGICAL CONDITIONS OF THE ALAGOANA FOREST ZONE

KEY WORDS:

Keywords: Fiber; TRS; evapotranspiration

PAGES: 58
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Melhoramento Vegetal
SUMMARY:

The solutions to mitigate the effects of water deficiency on sugarcane crop is the use of irrigation. But this technology is expensive and when severe droughts occur there is no water to irrigate most of the sugarcane fields. Then, another alternative is the selection of cultivars adapted to restrictive environments, with occurrences of water deficits (droughts) and with other agronomic profiles, such as energy-cane, to meet the demands for biomass for generating electricity and second-generation ethanol. Therefore, in order to evaluate the agro-industrial yields of RB sugarcane genotypes, with different profiles (traditional sugarcane, energy-cane and drought tolerant sugarcane), and correlating them with water characteristics of the Zona da Mata region of Alagoas, was carried an experiment  with six sugarcane genotypes, grouped into three profiles: I - traditional sugarcane (RB92579 and RB951541); II - drought tolerant sugarcane (RB0442 and RB0459) and; III – energy-cane (RB11999 and RB13403), from November 2016 to February 2021, in the Rio Largo region, Alagoas. In the four harvest cycles evaluated, the average yields of the genotypes were: RB13403 (103.6 t ha-1), RB0459 (95.2 t ha-1), RB11999 (90.8 t ha-1), RB0442 (88.3 t ha- 1), RB92579 (73.5 t ha-1) and RB951541 (72.4 t ha-1). The agricultural and fiber productivity of energy-cane genotypes, in general, are higher than that of drought-tolerant sugarcane genotypes, which, in turn, are higher than conventional sugarcane genotypes. Therefore, the RB0449 and RB0442 genotypes are more recommended for rainfed cultivation, aimed for the  sugar production, the energy-cane genotypes, RB13403 and RB11999, for the production of ethanol of second generation and electrical energy, from the cane bagasse. And, the cultivars RB92579 and RB951541 are more suitable for irrigated crops and production environments with less water restrictions.

COMMITTEE MEMBERS:
Presidente - 1206894 - IEDO TEODORO
Interno(a) - 1790454 - GUILHERME BASTOS LYRA
Externo(a) ao Programa - 1293984 - MARCOS ALEX DOS SANTOS - UFALExterno(a) ao Programa - 2149678 - RICARDO ARAUJO FERREIRA JUNIOR - UFALExterno(a) à Instituição - CARLOS ASSIS DINIZ
Externo(a) à Instituição - PAULO PEDRO DA SILVA