Select Your Favourite
Category And Start Learning.

  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • A message can only be deemed effective when it is…? (IFFCO 2022)

    Question: A message can only be deemed effective when it is…? (IFFCO 2022)

    Options:

    Non-preference
    Tolerance
    Antibiosis
    Resistance

    ✅Explanation:

    • Antibiosis is a type of plant resistance where the plant has a negative impact on the insect that feeds on it. This can manifest in various ways:
    Antibiosis is a valuable mechanism in plant defense and is often utilized in breeding programs to develop insect-resistant crops.

    📌 Other Options Explanations:
    -Non-preference: This refers to the insect's avoidance of a particular plant due to its physical or chemical characteristics.
    -Tolerance: This is the plant's ability to withstand insect damage without significant yield loss.
    -Resistance: Various mechanisms of plant defense against insects, including antibiosis, non-preference, and tolerance.

    🔑Key Points:

    • Antibiosis:
    -Antibiosis refers to the adverse effect of the host plants on the development and reproduction of insect pests, which feed on the resistant plants.
    -Resistant plants retard the growth and rate of reproduction of insect pests.
    -In some cases, antibiosis may lead even to the death of an insect.
    -Antibiosis is considered the true form of resistance to insect pests and may involve morphological, physiological, and biochemical features of the host plant. 

      0
      Your Cart
      Your cart is emptyReturn to Shop