Banca de DEFESA: NÉDIO LUÍS PATZLAFF

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : NÉDIO LUÍS PATZLAFF
DATA : 01/03/2019
HORA: 09:00
LOCAL: Instituto Federal Catarinense Campus Araquari, Prédio D, sala 302b
TÍTULO:

Evaluation of open-pollinated maize varieties of Epagri under the influence of line spacing

PALAVRAS-CHAVES:

Agronomic characters; plant structure; green mass; corn silage; potential of convertion into
milk.

PÁGINAS: 45
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
RESUMO:

It was an experiment that evaluated the production and quality of silages and determined
agronomic traits of maize varieties with open pollination (VPA) of the Agricultural Research
and Rural Extension Company of Santa Catarina (Epagri). The experimental design was a
randomized complete block design with a 2x3 factorial scheme, the first factor being the
line spacing (EEL) - 0.7 m or 0.8 m - and the second one the cultivar (SCS-154 Fortuna,
SCS- 155 Catarina or SCS-156 Colorado), with 04 replicates (blocks). The final booth of
plants of was fixed (55,000 plants.ha -1 ). The data were submitted to normality tests and
principal components analysis, followed by analysis of variance and Tukey's test for
comparison of means (p <0.05). The time from the emergence to male flowering (VT) and
up until the silage cut-off point (PCS) was 70 and 101 days, respectively, for SCS-154
Fortuna and SCS-156 Colorado; and 73 and 105 days for SCS-155 Catarina. Fortuna
showed greater leaf participation in the plant structure. There was no statistical difference
for stem diameter and ear length. The largest ear diameter was observed in Catarina with
EEL 0.7 m. Colorado cultivar had lower plant height and lower spike insertion height. The
highest production of green mass and dry mass was for Fortuna and Catarina. The Fortuna,
in the 0.7 EEL, presented the greatest potential of convertion into milk. The estimated cost
of production was higher in Colorado cultivar. Because reach the silage point 04 days
before, and present production, bromatological quality, and cost similar Catarina, the most
suitable cultivar for silage production is the SCS-154 Fortuna.

MEMBROS DA BANCA:
Presidente - 1760760 - CARLOS EDUARDO NOGUEIRA MARTINS
Externo à Instituição - FELIPE BERMUDEZ PEREIRA
Interno - 2356802 - ROBILSON ANTONIO WEBER