How does selective breeding help agriculture


Selective Cross Breeding

Pollen with the genes for a desired trait is transferred from plants of one crop variety to the flowers of another variety with other desirable traits. Eventually, through careful selection of offspring, the desired trait will appear in a new variety of plants.

Why is selective breeding important in agriculture?

Selective breeding of crops has been a tool of agriculture for thousands of years. Simply trying to breed plants to combine desired traits was and still is an important part of bringing about crops that yield more, stand better, or resist pests and disease more effectively.

What is selective breeding agriculture?

In selective breeding, a breeder chooses two parents with beneficial phenotypic traits to reproduce, yielding offspring with those desired traits. Selective breeding can be used to produce tastier fruits and vegetables, crops with greater resistance to pests, and larger animals that can be used for meat.

How can selective breeding be beneficial to farmers?

By selectively breeding animals (breeding those with desirable traits), farmers increased the size and productivity of their livestock.

What were the advantages and the effects of selective breeding on agriculture?

Selective breeding can produce plants that have a better resistance to pests or disease. Crops can be selectively bred to bring a yield to harvest in a faster time. Animals can be selectively bred to take less development time before they enter the human food chain.

What are the impacts of selective breeding?

Risks of selective breeding include: reduced genetic variation can lead to attack by specific insects or disease, which could be extremely destructive. rare disease genes can be unknowingly selected as part of a positive trait, leading to problems with specific organisms, eg a high percentage of Dalmatian dogs are deaf.

How do farmers use selective breeding to produce larger chickens?

For centuries farmers and ranchers have improved the genetic lines of their herds and flocks by selectively mating the healthiest and strongest animals with each other to produce a stronger line of offspring.

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