9th Class Science Improvement in food resources Question Bank 9th CBSE Science Improvement in food resources

  • question_answer
      What are pathogens? Name any two plant diseases caused by pathogens.

    Answer:

                      The disease causing microorganisms like bacteria, fungi and viruses are    called pathogens. They reach the plants through water, air, soil as well as seeds.                                                                      Two plant diseases caused by pathogens are rust in wheat and blast in paddy/stem rot in pigeon pea.


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