Advanced Gardening Crossword Puzzle

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Across
  1. 2. Reproduction of plants from a single parent plant
  2. 5. A plant that flowers every year
  3. 7. The above-ground axis of a plant that provides support for the leaves, flowers, and fruit
  4. 9. A plant's ability to survive adverse conditions
Down
  1. 1. The amount of crop grown in a certain area of land
  2. 3. Animal that moves pollen from one plant to another, which is essential for plant reproduction
  3. 4. A storage stem of certain plants which grows under the soil and can independently grow into a new
  4. 6. The parts of a plant that are under the soil and help anchor the plant as well as uptake nutrients and water
  5. 7. A small object containing the plant embryo which will become a future plant in ideal conditions
  6. 8. A plant that is not wanted in a certain area