Banca de DEFESA: WILLIAM GAMA DE OLIVEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : WILLIAM GAMA DE OLIVEIRA
DATE: 29/03/2023
TIME: 09:00
LOCAL: Google meet
TITLE:

LEVELS OF LIGHT INTERCEPTION AS A MANAGEMENT TOOL FOR BUFFEL GRASS Cenchrus ciliaris cv. Aridus.


KEY WORDS:

Pasture. Light effect. fodder. Leaf area index.


PAGES: 49
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Pastagem e Forragicultura
SPECIALTY: Avaliação, Produção e Conservação de Forragens
SUMMARY:

In the context of world livestock production, researchers have focused on animal production systems using forage plants as an economic alternative to compose the herd's diet, aiming at improving the quality of the products generated, reducing production costs and increasing the quality of life of the animals. In this work, the objective was to identify the best height of interruption of the forage canopy of Capim Buffel using Light Interception - IL. The research was carried out at the agricultural school unit of the Apodi Campus of the Federal Institute of Education, Science and Technology of Rio Grande do Norte - IFRN. The treatments corresponded to three variables (T1 – cut with 85% LI; T2 – cut with 90% LI; T3 – cut with 95% LI, respectively, monitoring was carried out from the seventh day of cutting, as that the plots reached LI% according to the assigned treatment. The experiment was conducted in a randomized block design (DBC) in a plot scheme, with 6 replications for each treatment and 3 blocks. The variables studied were: leaf area index (LAI), forage mass, light interception, component mass (stem, leaves and dead material), forage accumulation rate and entry height and exit height. The leaf/stem ratio showed significance for treatments (25 ,22%), highlighting the treatments T1 and T2 that presented the best ratio. Both the amount of leaf mass and the amount of stem mass were higher for treatments T3 and T2, respectively. Dry Matter production was significant of (15.49% ), where the treatment with a cut of 95% of LI obtained the best quantitative dry matter production - DMP. The height of the canopy with significance (10.23%) pointed to averages of 55 cm for the T3 treatment; 39 cm for treatment T2 and 35 cm for T1. The production of dead material did not differ between treatments. The treatments with the highest percentage of LI at the time of cutting showed a greater amount of forage mass, however, a greater number of days to reach the cutting day.


COMMITTEE MEMBERS:
Externo à Instituição - Genildo Fonseca Pereira - IFRN
Presidente - 1233988 - JOAO VIRGINIO EMERENCIANO NETO
Interna - 2339534 - STELA ANTAS URBANO
Notícia cadastrada em: 14/03/2023 23:18
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