Sugarcane cultivar response to glyphosate and trinexapac-ethyl ripeners in Louisiana.
PLoS One
; 14(6): e0218656, 2019.
Article
em En
| MEDLINE
| ID: mdl-31220169
ABSTRACT
Sugarcane ripening in Louisiana is necessary to ensure adequate sucrose levels in early-season harvested sugarcane. The response of nine sugarcane cultivar's yield components to glyphosate and trinexapac-ethyl ripeners was determined in field trials. Glyphosate (210 g ae ha-1) and trinexapac-ethyl (200 g ai ha-1) treatments failed to increase sucrose yields more than non-ripened sugarcane. Sugarcane ripened with glyphosate or trinexapac-ethyl increased theoretical recoverable sucrose (TRS) 4 to 12% more than non-ripened sugarcane in seven out of nine cultivars, but greater TRS values were counterpoised by lower sugarcane stalk weight. An unintentional consequence of reduced late-season vegetative growth may benefit growers by allowing them to harvest more sugarcane hectares to meet their daily load quota and exposes fewer hectares to a freeze event. The cultivars HoCP 00-950, Ho 09-804, and HoCP 09-840 were not responsive to glyphosate or trinexapac-ethyl ripeners and should not be treated. A delayed harvest from 28 to 49 days after treatment (DAT) coincided with greater TRS values and 17% more sucrose yield.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Quinonas
/
Sacarose
/
Ciclopropanos
/
Saccharum
/
Glicina
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article