Transcript Agriscience, Unit 19 Worksheet

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:
3. A substance applied to stem cuttings to speed up
the development of roots is:
4. The male part of the flower is called the:
5. The tendency of crossbred plants to be
stronger and survive better than purebred
plants is called:
6. Crossbreeding two species of plants in the
same genus with each another produces a:
7. An exact duplication of a plant by asexual
propagation is called a:
8. When a seed coat is damaged to encourage
germination, the process is called
9. A disadvantage of plant tissue culture as a
means of asexual propagation is:
10. The part of the plant that is responsible for
development of seed is the:
11. A seed that is alive and capable of
germination is said to be:
12. Sexual reproduction in plants results in the
production of:
13. Which plants tend to be stronger and
survive better than open-pollinated plants?
14. Which type of stem cutting method is used
when stock plant material is limited and the
stems have alternate leaves?
15. A cutting that is usually made from a large
– leaf plant with the veins split is called:
16. Which asexually propagation method is
used to join parts of from two different plants
to create a new plant?
17. The propagation method where a plant is
separated into smaller parts is:
18.
Tissue culture may be used for:
19. What are the advantages of asexual
propagation?
20. All seed plant propagation starts with:
21. The purpose of petals in flowers is to
attract:
22. Food for the seed is stored in the:
23. The three parts of a seed are:
24. The female part of a flower is called the:
25. Pollen is produced in the stamen by the:
26. The male sex cells in a plant are found in:
27. The purpose of a seed coat is to:
28. Which propagation method uses very small
actively growing plant parts and growing medium
using test tubes under sterile conditions to produce
thousands of plants:
29. The most common type of grafting is:
30. When you use a vegetative part or parts of a
plant for reproducing a new plant it is called:
31. A method of asexual propagation where the stem
is encouraged to root while still attached to the
parent plant is called:
32. What is the only way to obtain new
varieties and increase hybrid vigor of plants?
33. All of the flower petals together are called
the:
34. What part of the flower supports the
anther?
35. Sexual reproduction occurs through:
36. What is often less expensive and the
quicker method to reproduce plants
37. What vegetative plant parts can be used of a the
parent plant to regenerate itself asexual?