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The Purpose of Selective Breeding Simplified Revision Notes

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Purpose of Selective Breeding

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Purpose of Selective Breeding

Enhancing Agricultural Outcomes

  • Selective breeding is a long-standing practice employed by scientists and farmers to modify the DNA of crops and animals for specific purposes.
  • The primary aim is to improve and enhance various characteristics in organisms that contribute to more efficient and sustainable food production.

Higher Food Yields

  • Selective breeding is used to develop strains of crops and livestock that exhibit increased food yields.
  • This involves selecting individuals with traits such as larger crop yields or greater meat production and breeding them to pass on these desirable traits to the next generation.

Higher Nutritional Values

  • Another objective of selective breeding is to enhance the nutritional value of crops and animal products.
  • This includes increasing the content of essential nutrients or improving the quality of food products to meet dietary needs.

Pest and Disease Resistance

  • Selective breeding plays a crucial role in developing crops and animals with enhanced resistance to pests and diseases.
  • By selecting individuals that exhibit natural resistance or immunity to specific threats, breeders can create more resilient organisms.

Purpose of Selective Breeding

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Environmental Adaptation

  • Selective breeding also aims to create organisms that can thrive in particular environmental conditions.
  • This can involve developing crop varieties that are drought-resistant or livestock breeds that are well-suited to specific climates.

Supporting Sustainable Food Production

  • Overall, the purpose of selective breeding is to support sustainable food production by improving crop yields, nutritional content, resistance to threats, and adaptability to changing environmental conditions.
  • It contributes to the development of cultivars and breeds that meet the demands of a growing global population.

Quality Assessment through Plant Field Trials

  • The quality and performance of specific plant varieties, known as cultivars, can be assessed through plant field trials.
  • These trials involve growing and observing plants in real-world conditions to evaluate their suitability for agricultural purposes.
  • This helps ensure that the selected cultivars meet the desired criteria for food production and sustainability.
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Summary

  • Selective breeding is a genetic manipulation technique used to enhance agricultural outcomes.
  • Its objectives include increasing food yields, improving nutritional values, enhancing resistance to pests and diseases, and promoting adaptability to specific environments.
  • Selective breeding contributes to sustainable food production by developing organisms that meet the demands of modern agriculture and food security.
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