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Agriscience, Unit 20 Worksheet

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vanna
75 diapositives · 916 Views · Oct 10, 2014

Agriscience, Unit 20 Worksheet. ` 1. The process of increasing the number of species of a given plant is called:. 2. The propagation method where a stem is girdled, treated with a rooting hormone , and surrounded with damp sphagnum moss and plastic until new roots appear is called:.

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Agriscience, Unit 20 Worksheet
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  1. Agriscience, Unit 20 Worksheet

  2. `1. The process of increasing the number of species of a given plant is called:

  3. 2. The propagation method where a stem is girdled, treated with a rooting hormone , and surrounded with damp sphagnum moss and plastic until new roots appear is called:

  4. 3. A substance applied to stem cuttings to speed up the development of roots is:

  5. 4. The male part of the flower is called the:

  6. 5. The tendency of crossbred plants to be stronger and survive better than purebred plants is called:

  7. 6. Crossbreeding two species of plants in the same genus with each another produces a:

  8. 7. An exact duplication of a plant by asexual propagation is called a:

  9. 8. When a seed coat is damaged to encourage germination, the process is called

  10. 9. A disadvantage of plant tissue culture as a means of asexual propagation is:

  11. 10. The part of the plant that is responsible for development of seed is the:

  12. 11. A seed that is alive and capable of germination is said to be:

  13. 12. Sexual reproduction in plants results in the production of:

  14. 13. Which plants tend to be stronger and survive better than open-pollinated plants?

  15. 14. Which type of stem cutting method is used when stock plant material is limited and the stems have alternate leaves?

  16. 15. A cutting that is usually made from a large – leaf plant with the veins split is called:

  17. 16. Which asexually propagation method is used to join parts of from two different plants to create a new plant?

  18. 17. The propagation method where a plant is separated into smaller parts is:

  19. Tissue culture may be used for:

  20. 19. What are the advantages of asexual propagation?

  21. 20. All seed plant propagation starts with:

  22. 21. The purpose of petals in flowers is to attract:

  23. 22. Food for the seed is stored in the:

  24. 23. The three parts of a seed are:

  25. 24. The female part of a flower is called the: