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- Ability to produce large quantities of seeds.
- Weed seeds remain viable in the soil for a long period of time.
- Most weeds seeds are easily and successfully dispersed.
- Some weeds have ability to propagate vegetatively.
- Weeds have elaborate root system for support/nutrient absorption and water intake.
- Short life cycles.
OR
Some produce large seed quantities to enhance survival chances;
Some remain viable in the soil for a long time to await favourable conditions to germinate
Some are easily and successfully dispersed to enhance chances of survival;
Some have ability to propagate vegetatively into new plants:
Some have extensive root system to enhance survival in drought conditions:
Some have adaptations to survive where \vater/nutrients are limited through water and food storage modi?cations
Some have a short life cyle which is completed early before adverse climatic conditions set in:
Some initate animals as a protective measure against grazing, trampling/some are tolerant to pests and diseases.
Some are heavy feeders they make food faster than crop establishes.
Some weeds have allelopathic effects which suppresses growth of other plants enhancing their survival.
monica20 answered the question on October 11, 2017 at 06:44
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