|
Week:*
|
Discussion
Topic
|
|
1
|
Introduction;
Concepts and definitions; Classification/Nature of weed and crop competition |
|
2
|
Ecological
concepts for weed-crop relationship: Historical and ecological perspective;
Species, population and community concepts; weed-crop ecosystem |
|
3
|
Reproduction
of weeds from seed: seed characteristics, factors affecting weed seed
production, seed bank |
|
4
|
Types
of vegetative reproduction, factors affecting longevity and survival;
allocation of resources between sexual and vegetative reproduction |
|
5
|
Resumption
of growth: Dormancy, significance of seeds and vegetative parts |
|
6
|
Allelopathy
in weed management: Allelopathy-historical background, definition;
chemistry and production of Allelochemicals, significance of allelopathy
for weed-crop ecology |
|
7
|
Biotic
agents in weed management: Successful control of weeds with insects,
pathogens, and other agents for weed control; Role of biological control
agents in weed management |
|
8
|
Role
of herbicides in weed management: Historical perspective; Herbicide
selectivity-plants: Herbicide entry, transport, and general concepts;
Herbicide effects on biochemical reactions |
|
9
|
Interaction
of edaphic factors affecting herbicide performance; Herbicide persistence
in soils |
|
10
|
Crop
production practices and weeds: Weed introduction and spread; Effects
of crop production on weed changes; Influence of chemical control
practices on weed shift |
|
11
|
Weed
management program; Preventing weed interference; Weed management
for the crop production system; Weed management and the changing technology |
|
12
|
Special
topics: Herbicide resistance; Reduced rate technology; Genetically
modified crops |
|
13
|
Presentation
of special topics |
| 14 |
Presentation
of special topics |
| |
*Time
devoted to each topic is approximate
|
