Corn and Sorghum
Card Set Information
Corn and Sorghum
What is the scientific name for corn?
What type of grass is corn?
annual, warm grass
What type of root system does corn have?
Corn is grown in every state except for
What states make up the corn belt?
Iowa, Illinois, Indiana, Nebraska, Ohio
What is grown on more farms than any other crop?
the average daytime temperature for corn is
the average nightime temperature for corn is
How many frost free days are required for corn?
average precipitation for corn is
25-50", 3 to 4" each month of the growing season
Corn as an average mature height of
Corn produces how many ears
1-2 per plant
What type of soil does corn prefer?
well drained loam
is corn dioecious or monoecious
Monoecious- both male and female on the same plant
Corn ears are the
Corn tassels are the
why is corn a highly cross pollinated species
cuz of the monoecious flower arrangement
What is MDMV?
Maize Dwarf Mosaic Virus
transmitted by Aphids from johnsongrass to sweet corn
What is Bacterial Wilt?
transmitted by insects
What insects cause damage to corn?
Corn Leaf Aphids
Corn Ear Worm
How many acres of corn are grown annually in Texas?
more than a million
Compared to the Corn Belt, yields in the high plains...
equal or exceed the corn belt because of irrigation
Corn yields increased from _______ bushels from the 1910s to ______ bushels per acre now.
25 to 200+
Increased corn productivity is due to
genetically altered to increase yields
Sorghum's scientific name is
Sorghum is grown where
southern half of US where conditions are too high and droughty for corn
Sorghum is known as
In many countries, sorghum is grown as
a food grain
In the US, sorghum is grown primarily for
livestock and poultry feed
2 types of sorghum
Grain sorghum is a
coarse annual grass usually under 5 ft tall
Grain sorghum is grown for
Grain sorghum hybrids with juicy stalks have
high when grain yield is low
Grain sorghum has what kind of root system
grain sorghum fibrous roots are
smaller in diamter
more efficient in water and nutrient absorption than corn
Grain sorghum flowers have both
sterile and fertile florets
95% of fertile florets are
grain sorghum seeds vary in color from
how many leaves does grain sorghum have?
Forage sorghum is grown for
grazing, hay, or silage
forage sorghum grows up to
forage sorghum has how many leaves
forage sorghum is grown to produce
maximum yields of high quality forage with limited concern for grain production
sorgo types & hybrids are
grown for silage
sudangrass & hybrids
have smaller culms than sorgos and primarily used for hay and grazing
a perennial sorghum used for hay and grazing
straw is used to make brooms
importance has diminished due to cometitive synthetic fibers
in texas, grain sorghum is planted
on more acreage than any other crop
35-40% of all grain sorghum produced in the US
differences between grain & forage sorghum
purpose for growing
number of leaves