Highlight and explain four method of weed dispersal
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Highlight and explain four method of weed dispersal
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Answer:
There are several methods of seed and weed dispersal. these methods can be mechanical, physical..animal dispersal, wind dispersal of seed and weed, water dispersal of seed and biological dispersal, in this post we will be learning about the various methods of weed dispersal, so lets begin with seed dispersal...
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Answer:
WHAT IS WEED DISPERSAL?
Weed dispersal is simply the transporting of weeds from one place to another through several means and agents. these methods of transporting seed or weed from place to place is called seed and weed dispersal method
When we say agent of weed dispersal it is generally assumed of anything that takes the seed of plant or crops from one destination to another for the sole purpose of propagation
Dispersal agent of weeds is not limited to the ones listed on this blog post so we can assume that there are different types of weed and seed dispersal depending on which angle you as a writer is looking at it from. so many dispersal methods can have different names from different field of endeavour
Explanation:
Dispersal of seeds and weed. there are several methods of seed and weed dispersal. these methods can be mechanical, physical. animal dispersal, wind dispersal of seed and weed, water dispersal of seed and biological dispersal,
Mechanical method of weed and seed dispersal
When speaking of mechanical methods of seed and weed dispersal we are talking about the various links through mechanical means like motor vehicles caterpillars and moving of heavy-duty machinery along Bush paths and the dispersal of weeds and their seed. People also spread many weeds around through their machines
WIND DISPERSAL OF WEEDS
The structures of some weed seeds enable their distribution by wind. Such features as being winged, having parachute make them easily carried about by wind.
DISPERSAL OF WEEDS BY WATER
Weed seeds can be carried by moving water such as surface run-oft, streams, irrigation and drainage water. They have adaptation lenluus (hat enable movement by water such as membranous sacs containing air of corky protuberances. These make the seeds buoyant on water so that they can float. They can also stay in water for a period without losing viability.
MAN AS AN AGENT OF WEED DISPERSAL
Man can transport weed seeds over long distances as a result of movements of agricultural seeds, foodstuff, nursery stock and others. Some weeds or their seeds could cling to the wears of the farmers and these are deposited elsewhere.
Self Explosion or Explosive Mechanism of weeds dispersal
This is brought about by the forces set up in dry walls of weeds fruits which cause explosion. This scatters the seeds in the fruits away from the parents plants. Such weeds are said to be self dispersed.MANY WEEDS HAVE SEEDS OR SEEDPODS THAT CLING TO THE FUR OR BODY OF ANIMALS AND THE CLOTHING OF HUMANS AS A RESULT OF STICKY HAIRS, HOOKED SPINES, OR BARBED AWNS.
Weed Dispersal by machinery
Weed seeds often are dispersed by tillage and harvesting equipment.
Seeds move from field to field on the soil that sticks to tractor tires, and vegetative structures often travel on tillage and cultivation equipment and latter dropping them in other fields to start new infestation. Disc-type cultivation equipment is less likely to drag vegetative plant parts than are shovels or sweeps.
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