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Popcorn and Ornamental Corn
Key points Popcorn
characteristics Growing popcorn Harvesting &
shelling Popping Ornamental corn Problems
Popcorn (Zea mays)Introduction Was probably the
__________ type of corn to be consumed
Began in _____________ region of South America
Also widely used by North American natives
Actually a type of flint corn
Characteristics of Popcorn
Generally has ________________ ears May be 2 to 3 ears per stalk Comes in a range of colors
Red, blue, _______________, purple, orange Standard cultivars are
yellow or white Popcorn can be grown
both for popping or as an _________________
Popcorn Kernels
Pointed at the __________ and apex
Very hard endosperm Have _________ pericarps _______________ content very
important for good popping When heated the water expands Causes kernel to turn itself inside out
Growing Popcorn
Plant in _____- _____ when soils have warmed Popcorn has slow ___________ and seedling
growth
Growing Popcorn
Pollination Plant in _________________ to ensure good
pollination Not necessary to isolation from other
types of corn If popcorn sheds ______ at same
time as sweet corn, sweet corn quality can be reduced
Popcorn Harvesting Ears must reach full
maturity Allow ears to remain on
plants until they reach about _______% moisture (about first frost)
Harvest ___________ and remove husks
Store ears for about 3 weeks in a sheltered, dry place, outdoors
Well ventilated to avoid mold
Brings moisture content down to ~____%; ideal for popping
Hand-shelling popcorn Remove kernels from
the ear by a vigorous _______ motion against your hands
Store the kernels in ________ containers
Popping ______ critical – ______ of popped corn from given weight of _______ kernels
Popping __________ integrity is of
utmost importance It is like a pressure vessel
Heat _________ the moisture Steam provides the driving
force for _________ of the kernel
Popping occurs when the _______ ruptures
Rupture should not occur until ________ lbs per sq. inch of pressure is applied
Popping Poor popping
Often occurs if moisture content is too low Without proper storage, popcorn will dry to
_______% moisture, which is too low for good popping
Can increase moisture by adding one tablespoon of water per ____________ of popcorn, shaking, and sealing in a container
If pericarp is broken, popping quality is greatly __________________
If popcorn is “chewy” after popping then too much _________
Popcorn as a food Nutritionally _________
popcorn is one of best snack foods
Popcorn contains: More _________ and
protein than a similar weight of whole wheat bread
67% as much _______, 110% as much iron, and as much ______ as equal amount of beef
Added oil and salt lowers nutritional value
Ornamental Corn New ornamental
corns have________ in their parentage
Smaller ear size Plant in mid-to-late
May for mid- _______ harvest
Can find cultivars with _________ stalks, husks, and kernels
Ornamental Corn Harvest ears when
________ is dry and ears beginning to dry down
Pick ears carefully so ________ not damaged
Pull husks back – so _____ and ears dry quickly
Tie ears together into bunches