History of Sorghum Grain

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Questions and Answers

What is the primary function of most species of Fusarium?

  • Rust-causing agent
  • Saprobe (correct)
  • Plant pathogen
  • Insecticide

Where was Puccinia purpurea first discovered?

  • Canada
  • Temperate regions worldwide
  • Russia
  • Maharashtra, India (correct)

What is the primary purpose of crop rotation in sorghum cultivation?

  • To reduce water usage
  • To minimize the buildup of sorghum pests (correct)
  • To promote insecticide treatment
  • To increase soil temperature

At what stage do plants become more able to withstand insect feeding?

<p>When they are mature (C)</p> Signup and view all the answers

What is the minimum amount of water required for insecticide application per acre?

<p>20 gallons (B)</p> Signup and view all the answers

What is the purpose of insecticide seed treatment?

<p>To control pests in the plant (B)</p> Signup and view all the answers

What is the primary characteristic of Puccinia purpurea?

<p>It is a plant pathogen (B)</p> Signup and view all the answers

What is the result of not controlling insect populations in sorghum cultivation?

<p>Increased risk of infestation (D)</p> Signup and view all the answers

What is the benefit of early planting in sorghum cultivation?

<p>Reduced risk of insect damage (C)</p> Signup and view all the answers

What is the threshold for applying insecticide treatment?

<p>When pest populations exceed treatment thresholds (D)</p> Signup and view all the answers

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