Popcorn plants were growing real well, They look healthy and they have
started to grow their ears and have sprouted their “tassels” on top. the
ears appear to be about half size, they are long but only an inch or so in
diameter. Started noticing about a week ago that they that they seem to
have stalled.....I fertilized when they first started to tassel which was
about 3 weeks ago. Have 4 rows, about a dozen each row and they get full
sun. I have never grown corn before, so not sure if this is a problem.
On Thu, 23 Aug 2012 00:50:56 GMT, snipped-for-privacy@theShire.org wrote:
Popcorn ears achieve only about half the diameter of sweet corn. A
fact you may want to know about corn is that *normally* there are 16
rows on an ear (always an even number) totaling 800 kernals so
popcorn's smaller kernals result in a much smaller diameter ear. It
seems your corn is ready to harvest.
> Popcorn plants were growing real well, They look healthy and they have
Number of harvestable kernels per ear is an important contributor to the
grain yield potential of a corn plant. Severe plant stress during ear
formation may limit the potential ear size, and thus grain yield
potential, before pollination has even occurred. Optimum growing
conditions set the stage for maximum ear size potential and exceptional
grain yields at harvest time. The size of what will become the
harvestable ear begins by the time a corn plant has reached knee-high
and finishes 10 to 14 days prior to silk emergence.
By about the V5 or V6 stages of development (five to six visible leaf
collars), the growing point (apical meristem) of the corn plant finishes
the task of initiating leaf primordia and completes its developmental
responsibilities by initiating the tassel primordium of the plant. At
about the same time that the tassel is initiated, the uppermost
harvestable (and final) ear is also initiated (Lejeune and Bernier,
1996). This uppermost ear is normally located at the 12th to 14th stalk
node, corresponding to the 12th to 14th leaf of the plant.
Popcorn ears are typically smaller than sweetcorn ears. You'll get better
pollination if you plant your 48 plants in a 6x8 block instead of a 4x12.
You may not get good fill anyhow -- corn pollen is very heat sensitive at an
early stage of development (field, sweet, and I presume popcorn too) --
temps in the high 90s can produce sterile pollen.
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