Question

    Which of the following statements are correct about weed

    shift? Statement I - Susceptible  species  are  killed  by  the  weed  management  practices  while  resistant  ones grow, reproduce, and increase in the community, resulting in a weed shift. Statement II - A weed  shift means that the habitat of a weed species is changed due to change in environmental conditions.
    A Only Statement I is correct Correct Answer Incorrect Answer
    B Only Statement II is correct Correct Answer Incorrect Answer
    C Both statements I & II are correct Correct Answer Incorrect Answer
    D Both statements I & II are wrong Correct Answer Incorrect Answer

    Solution

    Weed shift refers to change  in  composition  or  relative  frequencies  of  weeds  in  a  weed  population  in  response  to natural  or  human-made environmental  changes  in  an  agricultural  system  is  known  as  weed shift.

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