Blinn College Horticulture Exam 2 Questions
With Correct Answers 100% Verified.
Scarification - Answer✔breaking or softening a seed coat to allow absorption of moisture
why do some seeds need to be soaked or scratched - Answer✔scratching the seeds will help
break down the seed coat.
Bisexual reproduction in plants - Answer✔plants that are the same sex
Hybrids - Answer✔The offspring of two different varieties
indirect seeding (transplanting) - Answer✔planting seeds indoors and growing seedlings prior
to being transplanted to a larger container or to a permanent location outdoors.
Vermiculture - Answer✔the raising and production of earthworms and their by-products.
Hardening off - Answer✔Process of moving plants outdoors for a portion of the day to gradually
introduce them to the direct sunlight, dry air, and cold nights.
tissue culture - Answer✔Technique for growing pieces of living tissue in artificial media
Temperature soil is sterilized at - Answer✔180 degrees
pelleted - Answer✔refers to seeds that are coated with an organic clay-based compound to
create a large seed that will be easier to sow
seed coat - Answer✔A tough outer covering of a seed, formed from the outer coat of an ovule.
endosperm - Answer✔food-rich tissue that nourishes a seedling as it grows
embryo - Answer✔developing stage of a multicellular organism
Construction sand - Answer✔granite rock, gneiss, or limestone.
Sphangnum Moss - Answer✔seed starting, as a planting medium for orchids, as a potting soil
amendment, for lining baskets, or for other art projects. It has a neutral pH level and is great for
retaining moisture in the soil, even when dried.
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Perilite - Answer✔Perlite is a naturally occurring mineral that is added to garden soil to improve
aeration, water retention and drainage. It looks like small, white Styrofoam balls and is
commonly found in potting soil and seed-starting mixes.
How to Identify the top and bottom of a cutting - Answer✔top cutting is the most basic, and
requires just one snip. By separating the top of the stem from the bottom, cutting on the
internode, you remove the plant's terminal bud, the growth point at the top of the stem. You
can see this growth point as a pointy bump forming on the petiole of the newest leaf.
The best time of day to take a cutting - Answer✔early morning because plants have more
moisture.
Transpiration - Answer✔Evaporation of water from the leaves of a plant
meristem culture - Answer✔A method for the asexual propagation of plants, in which pieces of
shoot apical meristem are cultured to produce plantlets.
Tissue culture, what parts of plant are used for this - Answer✔Plants important to developing
countries that have been grown in tissue culture are oil palm, plantain, pine, banana, date,
eggplant, jojoba, pineapple, rubber tree, cassava, yam, sweet potato, and tomato.
callus formation - Answer✔mass of tissue that forms at a fracture site and connects the broken
ends of the bone
Humidity level for new cuttings - Answer✔80 to 95 percent.
Juvenile effect - Answer✔is important as it affects when a plant can become reproductive. ...
Having completed the juvenile phase, plants may be described as "ripe to flower.
softwood cutting locations - Answer✔Softwood cuttings should be approximately 4 to 6 inches
long. Pinch off the leaves on the lower half of the cutting. Also remove any flowers. Make a
fresh cut just below the point where one or two leaves are attached to the stem (node) and
then dip the base (cut end) of the cutting in the root-promoting compound.
Asexual - Answer✔Process by which a single parent reproduces by itself
clone - Answer✔An organism that is genetically identical to the organism from which it was
produced
fungicide - Answer✔substance that kills fungi or inhibits their growth
herbaceous - Answer✔Having the characteristics of green and leafy plants such as herbs
Node (plant) - Answer✔Where a petiole attaches to a stem (dicot)