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Home Horticulture Quiz 4
Terms in this set (45)
My big yellow flowering bush i bought last spring successfully survived the winter and has been growing well this spring. By early summer it began to flower small white white flowers, what happened?
the rose is grafted and the grafted portion died all the way to the union, leaving the stock which is a wild white flowering type
A major advantage to cloning is
limits genetic diversity
the process where one stimulates an azalea branch to root before it is cut from the main plant is an example of
why would one want to use the method listed above?
works on plants that may have a difficult time rooting from cuttings
ideal gardening soil:
45% mineral, 5% organic matter, 25% air space, 25% water space
seeds that germinate and grow normally are called
Best method to scarify physically dormant temperate seeds
hot water treatment
Order of treatment for temperate seeds that are "double dormant"
scarification, followed by stratification, followed by planting
Soil pores that are unable to hold water against the force of gravity
Rootone is a material that can be applied to cuttings to help them stimulate adventitious rooting. Rootone is a synthetic version of a naturally occurring plant hormone called
In a Ted Talk, Cary Fowler talked about the importance of plant biodiversity and seed banks. Where was the seed bank he talked about located?
The most important factor to make happen when rooting cuttings is
reducing water loss due to transpiration
the "easiest" and most economic way to overcome self incompatibility in plants would be
the Mr. Rogers method
What is a major disadvantage to cloning plants?
limits genetic diversity
Plant roots do not grow very well at all in which of the following soil horizons?
B horizon (subsoil)
To increase longevity of most seeds you should store them in which of the following conditions?
in the refrigerator (40F with 30-40% relative humidity)
Term used to describe the event where water percolates through the soil taking salts, and nutrients with it
When taking a cutting it is best to "direct stick" it into
a pot containing potting soil
Best method for vegetatively propagating many herbaceous perennials with large expanding crowns
what do you call a group of plants all derived from the same individual and propagated exclusively by vegetative means?
Air layering is a great way to stimulate rooting of many houseplants, and woody plants like gardenia. how long does it take to produce roots on an air layer?
about 3 months
an example of a self incompatible plant that requires home garden attention would be
soil texture is defined as
the size of the mineral components in a soil
cation exchange capacity is defined as
ability of a soil to hold nutrients against the forces of leaching
Your neighbor asks you why every time they cultivate the rows between their vegetable plants to control weeds, two weeks later they have more weeks. What do you tell them?
many seeds require exposure to light and the weed seeds below the soil were brought closer to the surface by cultivation
grafting is a very unique form of plant propagation. Why would you want to graft a plant if it requires much skills and patience?
plant breeding often leads to plants that can't grow on their own roots, this method allows them to thrive.
Organic matter is great stuff to add to garden soils, it builds soil, adds to water holding capacity, improves nutrient holding capacity, and provides food for essential soil organisms. What is organic matter?
plant or animal residue decomposed beyond the point of recognition.
The ability of soil to form clumps (aggregates) which improves water movement and root growth is called soil
The most stable (middle age) form of organic matter is
Which soil texture is most chemically active and therefore the most fertile?
The natural occurring plant hormone auxin was first discovered in which easy to root plant species?
What does a soil probe do?
takes a soil profile
Condition in some fruit where the seeds germinate inside the ripe fruit
is a cutting alive?
what do we measure to determine if cuttings, seeds, or plants are alive?
What do rose breeders sacrifice in order to maximize flower color, fragrance, and size?
In addition to cercis canadensis, name another plant that exhibits cauliflory
What soil component has the highest CEC?
soil is defined as
stuff plus space
middle age organic matter
well built soil increases water infiltration by
which part of soil is most dynamic and always changing
what is the first step in seed germination
imbibition of water
if you had 1000 very small physically dormant temperate woody plant seeds and wanted to scarify them quickly and safely what would be the best method?
hot water method
how do we know for sure when temperate woody seeds are ripe?
they abscise from the plants.
Recommended textbook explanations
Dennis G. Tasa, Edward J. Tarbuck, Frederick K. Lutgens
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Pearson Earth Science
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