CHARACTERISTICS OF WEEDS

A pepper plant that grows in a yam farm plot is regarded as a

• Crop

• Flower

• Weed

• Vegetable

Weeds are beneficial to farmers EXCEPT that they

• Habour crop diseases

• Prevent soil erosion

• Serves as mulch materials

• Serves as medicinal herbs

A fluffy seed coat weed can be dispersed by

• Water

• Animal

• Wind

• Explosive action

Characteristics of weeds include the following EXCEPT

• Short dormancy

• High regenerative ability

• Difficult to eradicate

• Easily estsblished

Weeds can be classified based on their life cycle into the following EXCEPT

• Annual weeds

• Ephemeral weeds

• Biennial weeds

• Perennial weeds

Panicum maximum is an example of

• Annual weed

• Biennial weed

• Perennial weed

• Ephemeral weed

The following are devices that aids weed dispersal in plants EXCEPT

• hairs like parachute

• hooks

• wings

• buds

Desmodium plant have

• wings and light seeds for dispersal.

• air spaces for dispersal.

• Rhizomes for dispersal.

• oily covering for dispersal.

Weeds cause reduction in crop yield because they

• are difficult to eradicate.

• deprive crops of nutrients.

• attract insect pests.

• reduce plant population.

Tridax procumbens is difficult to eradicate because it

• Produces seeds with long dormancy.

• produces lots of seeds.

• produces large amount of pollen grains.

• possesses hard seed coat.