Plant growth substances

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Across
  1. 1. An artificial growth substance used to prevent premature fruit drop and induce flowering
  2. 3. The bending of a plant stem towards light due to uneven auxin distribution
  3. 4. A hormone that accelerates cell division and delays plant ageing
  4. 5. A substance that closes stomata when water is scarce to reduce transpiration
  5. 7. A gas necessary for fruit ripening and wound healing in plants
  6. 8. A plant hormone that promotes stem elongation and fruit growth
Down
  1. 2. The layer formed at the base of leaves or fruits causing them to fall naturally
  2. 5. A plant growth substance that speeds up cell growth and helps the shoot grow upwards
  3. 6. A chemical used to obtain mango fruits in the off-season
  4. 9. A natural growth substance in plants called Indole Acetic Acid