11th Class Biology Plant Growth and Development / पौधे की वृद्धि और विकास

  • question_answer 36)
      Nicotiana tobacum, a short day plant, when exposed to more than critical period of light fails to flower. Explain.

    Answer:

                    The fungus Gibberella fuijkuroi when infects rice plant, it causes increase in inter nodal area of rice so, that the rice plant become foolish^ tall as compared to normal ones. This is because this fungi produces. GA in considerably higher amounts which causes over growth of rice plants thus, causing foolish disease.


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