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#Question id: 11843


During an experiment Six-day-old pea seedlings were grown in the dark in the presence of 10 ppm (parts per million).  Firstly, Grown seedling treated with ethylene and secondly grown seedling left untreated. What will be the conclusion has been drawn from this experiments?      

#Unit 6. System Physiology – Plant
  1. The treated seedlings show triple response , while untreated grow normally
  2. ethylene response not generated, Both seedling grows normally
  3. treated and untreated both seedlings show radial swelling, elongation of the epicotyl, and horizontal growth of the epicotyl
  4. ethylene treated seedling shows radial swelling, elongation of the epicotyl and fruit ripening while untreated show inhibition of elongation of the epicotyl