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Alfalfa
part of test 2
57
Agriculture
Undergraduate 4
01/30/2017

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Term
the genus alfalfa is in
Definition
Medicago
Term
the number of perennials in the genus Medicago
Definition
about 20
Term
the number of annuals in the genus Medicago
Definition
about 40
Term
can annuals and perennials in the genus Medicago hybridize?
Definition
no
Term
a difference between clover and alfalfa leaflets
Definition
In clover, the leaflets are equidistant
In alfalfa, the middle leaflet has a longer pedicel
Term
how germination works in alfalfa seed pods
Definition
In each pod, when one seed germinates, it prevents the others from germinating
Term
Where Did Alfalfa Come From?
Definition
this is basically the center of origin
[image]
Term
something about the genetics of alfalfa in the center of origin
Definition
Lots of genetic diversity in center of origin
Term
the first place in the U.S. where alfalfa arrived
Definition
the SE
Term
one of the first people to experiment with alfalfa
Definition
Jefferson
Term
what they call alfalfa in Australia and NZ
Definition
Lucerne
Term
William Maclure
Definition
Maclure is known as the father of geology in the US; he founded the USGS
Term
this person is known as the father of geology in the US; he founded the USGS
Definition
William Maclure
Term
one of the problems with growing alfalfa in the late 18th century
Definition
acid soil
Term
what gypsum does to the pH
Definition
it doesn’t change pH, but ties up Al
Term
a variety of alfalfa known for cold tolerance
Definition
Grimm
Term
the Grimm variety of alfalfa known for...
Definition
cold tolerance
Term
why California turned out to be a good place to grow alfalfa
Definition
because of its dry, not cold, mediterranean type climate, which is the type of climate it evolved in
Term
We try to incorporate ______ into the non dormant types of alfalfa
Definition
cold tolerance
Term
First GMO trades in [this year]
Definition
1996
Term
the only program left in the SE region for cool season forages
Definition
the one at UGA
Term
Alfalfa grown in California is grown under ______
Definition
irrigation
Term
The largest crop in Cal is ______
Definition
alfalfa
Term
some things to do when growing alfalfa
Definition
-Well tilled, weed free seedbed
-Lime and fertilize as needed
-Plant after danger of frost
-Don’t grow in wet areas
-Harvest at early flower
-Control weeds
-Plow up when stands thin

not much has changed in ~ 2000 years
Term
The meaning of alfalfa is...
Definition
horsepower
Term
[image]
Definition
alfalfa crown
Term
depiction of the alfalfa crown
Definition
[image]
Term
functions of the alfalfa crown
Definition
-Site of regrowth
-storage compounds for stress survival (carbohydrates, proteins, fatty acids, etc.)
Term
some storage compounds stored in the alfalfa crown for survival
Definition
-carbohydrates
-proteins
-fatty acids
-etc.
Term
Dormancy is important in alfalfa because...
Definition
it controls autumn growth and regrowth rate during the year
Term
If you’re in a mild winter region, grow a [dormant or non dormant] variety of alfalfa
Definition
non dormant
Term
depiction of different architectures of alfalfa depending on type of dormancy
Definition
[image]
Term
plants go dormant because of...
Definition
temp and photoperiod
Term
______ controls the depth of dormancy
Definition
Temperature
Term
One of the problems we have with alfalfa in Ga
Definition
nematodes
Term
disease that very easily infects alfalfa
Definition
phytophthora
Term
some insect pests of alfalfa
Definition
-Potato Leafhoppers
-Alfalfa Weevil
-Several Aphids
-Plant Bug
-Lygus
Term
how potato leafhoppers harm alfalfa
Definition
They pierce the leaf, inject saliva, and feed like mosquitoes; the saliva contains chemicals toxic to the plant; characteristic due to V shape on leaflets
Term
some other insects in Ga that can harm alfalfa
Definition
-Three cornered alfalfa hopper
-Blister beetle
Term
a pest that harms alfalfa that happens to be toxic to horses
Definition
blister beetle
Term
how some new varieties of alfalfa are resistant to potato leafhoppers
Definition
Newest varieties have gladular hairs (these are repellent to the leaf hopper; prevents insect from coming into contact with the leaf)
Term
what they breed alfalfa for in Australia
Definition
drought resistance
Term
why you gotta rotate the grazing with alfalfa
Definition
because alfalfa is sensitive to grazing
Term
Creeping rooted
Definition
this means it has a tap root and roots branching out from it
Term
Storage organ for alfalfa
Definition
the crown, not the roots
Term
how grazing tolerant alfalfa is selected
Definition
Selected under severe grazing for survival
Term
grazing tolerance of creeping rooted alfalfa
Definition
May or may not be grazing tolerant!
Term
alfalfa when it comes to causing bloat
Definition
All varieties are capable of inducing bloat
Term
why grazing management is very important for alfalfa
Definition
because it is very important for alfalfa if you want to maintain the stand
Term
some Biotech traits in alfalfa
Definition
-Roundup Ready
-Improved nutritional value
-Improved leaf retention
-Production of novel products
Term
some ways that the nutritive value of alfalfa has been improved
Definition
-Low lignin, improved digestibility
-Tannin containing (no bloat)
Term
some novel products produced by alfalfa
Definition
-Industrial enzymes
-Plastics
Term
what you gotta factor in when trying to decide what species of alfalfa to grow
Definition
the entire system
Term
a benefit of alfalfa
Definition
N fixation
Term
some crops that are subsidized in the U.S.
Definition
-corn
-soybeans
Term
The only nutrient you need to worry about for alfalfa
Definition
K
Term
is alfalfa subsidized?
Definition
no
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