Effect of temperature on maize sensitivity to acetochlor

Abstract: 
This greenhouse study determined the effect of temperature on the herbicide acetochlor. The herbicide was applied a day after planting at the rates of 0.74, 1.47, 2.94 and 5.85 kg ha-1. Plants were kept at three temperature: supra-optimal (35/28 0 C), optimal (28/18 0C) and sub-optimal (15/08 0C). Significant interactions were observed for herbicide rate x temperature x cultivars. Generally seedlings at the optimal and supra-optimal temperatures grew faster and passed the seedling stage rapidly.
Cette étude effectuée dans la serre a déterminé l’effet de la température sur l’acétochlore herbicide. L’herbicide a été appliqué un jour après la plantation au taux de 0.74, 1.47, 2.94 et 5.85 kg ha-1. Les plantes ont été gardées à trois températures: supra-optimale (35/28 oC), optimale (28/18 oC) et sous-optimale (15/08 oC). Des interactions significatives ont été observées pour les taux d’herbicide x température x cultivars. En général les semis à la température optimale et supra-optimale ont augmenté plus rapidement et ont dépassé le stade des semis rapidement.
Language: 
English
Date of publication: 
2010
Country: 
South Africa
Region Focus: 
Southern Africa
Author/Editor(s): 
Mphundi, P.
Allemann, J.
Conference: 
RUFORUM Second Biennial Conference, Entebbe, Uganda, 20-24 September 2010
Collection: 
RUFORUM Conferences and Workshops
Agris Subject Categories: 
Agricultural research
Crop husbandry
Meteorology and climatology
Agrovoc terms: 
planting
herbicides
maize
biological development
weeds
Irrigation
drying
developmental stages
crops
Additional keywords: 
Acetochlor
herbicide
maize
seedling growth
temperature
RUFORUM; Agricultural Higher Education
Mphundu.pdf
Licence conditions: 
Open Access
Access restriction: 
Public
Form: 
Printed resource
Publisher: 
RUFORUM
ISSN: 
E_ISSN: 
Edition: 
Extent: 
213-215
Notes: 

"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme of agronomy"