Banca de DEFESA: FERNANDA LOPES PORTO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : FERNANDA LOPES PORTO
DATA : 11/01/2021
HORA: 13:00
LOCAL: Teleconferência
TÍTULO:

ADPTABILITY AND STABILITY OF SWEET SORGHUM GENOTYPES

PALAVRAS-CHAVES:

Sorghum bicolor; ethanol; genotype x environment interaction

PÁGINAS: 37
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Fitotecnia
ESPECIALIDADE: Melhoramento Vegetal
RESUMO:

This study aimed to verify the presence of genotype x environment interaction in sweet sorghum genotypes in different regions, as well as to identify the most productive materials. For this, the assays were conducted in randomized blocks with three replications, and 21 experimental hybrids and 4 varieties, of these, 2 commercial, of the Embrapa Maize and Sorghum Breeding Program were evaluated. The experiments took place in three locations (Sete Lagoas-MG, Sinop-MT and Jaguariúna-SP), in the periods of first harvest 2018/2019 and second harvest 2019. The following characteristics were evaluated: flowering (FLOR), green mass production (PMV), total soluble solids (SST) and ton of brix per hectare (TBH). Individual variance analyses were performed by environment and together, and then the genotype means were grouped by the Scott-Knott test (P<0.05). Additionally, studies of adaptability and stability and comparison of the Annicchiarico (1992) and GGE biplot (YAN et al., 2000) models were conducted. Occurrences of genotype x environment interaction were observed for all studied characteristics. Among the results, the hybrids 5, 6, 20 and 21 were the earliest and the 14, 17 and 18 were the most productive. In the study of adaptability and stability, the GGE biplot model was more efficient, presenting hybrids 18 and 16 as the most adapted genotypes.

MEMBROS DA BANCA:
Presidente - 985.174.497-20 - FLAVIO DESSAUNE TARDIN - UENF
Externo à Instituição - RAFAEL AUGUSTO DA COSTA PARRELLA - EMBRAPA
Externo à Instituição - CICERO BESERRA DE MENEZES - EMBRAPA