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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

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Popcorn and ornamental corn
Popcorn and Ornamental Corn

Key points

  • Popcorn characteristics

  • Growing popcorn

  • Harvesting & shelling

  • Popping

  • Ornamental corn

  • Problems


Popcorn zea mays
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
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
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
Growing Popcorn

  • Plant in _____- _____ when soils have warmed

    • Popcorn has slow ___________ and seedling growth


Growing popcorn1
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
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
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
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


Popping1
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
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
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 corn1
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


Problems of popcorn and ornamental corn
Problems of popcorn and ornamental corn

  • Stalk standabilty and ear ______ important

    • Insect problems _________ to sweet corn

    • Damage from corn earworm, European corn borer, & corn _________

    • Diseases – stalk rots & ear molds