It is not uncommon for silk emergence to begin not only prior to the last tassel branch appearing from the whorl, but also prior to the exsertion of anthers and pollen shed (Nielsen, 2009). Plant height reaches its maximum at or shortly after growth stage VT as the final stalk internodes complete their elongation.
https://www.agry.purdue.edu/ext/corn/news/timeless/Tassels.html
Never boil your corn for any longer than 10 minutes. The best way to boil corn is for less than a minute and then let it seep in the covered hot water for 10 minutes. This process is detailed below. That’s the quick answer to how long to boil corn, but see the chart below for additional boiling times for corn.
http://www.eatbydate.com/how-long-to-boil-corn/
Steps to Boil Corn on the Cob: 1  1) Fill a large pot about half full of water and bring to a boil. 2  2) Husk your ears of corn. 3  3) Add carefully the ears of corn to the boiling water.  4) Return the water to a full rolling boil (this should take 3-5 1  minutes). 5) Set the timer for 10 minutes.
http://www.eatbydate.com/how-long-to-boil-corn/
Popcorn and flint corn kernels must dry on the plant, so they typically take 50 days to harvest after tasseling. If a popcorn variety requires 100 days to reach maturity, the plant generally tassels 50 days after germination. Variables can affect when corn will tassel.
http://homeguides.sfgate.com/corn-plant-tassel-59512.html
Q. How long does it take for most sweet corn varieties to produce edible ears? A. Most sweet corn varieties on the market today will mature between 60 to 90 days after seeding. Maturity rate will vary greatly from year to year and from season to season depending on temperatures.
http://aggie-horticulture.tamu.edu/archives/parsons/vegetables/corn.html
Add husked corn ears and bring the water back to a boil on high heat (covered or not). Since corn tends to float on top of the water, I cover the pot. This helps the water come back to a boil faster and helps the corn cook. It will take approximately 3 to 4 minutes to bring the water back to a boil. Once water comes back to a boil, immediately remove the corn ears from the water. The corn is now cooked perfectly and NOT overcooked.
https://whatscookingamerica.net/Vegetables/BoilingCorn.htm
Q. How often should sweet corn be fertilized to produce high yields of good quality corn? A. Sweet corn should be lightly fertilized prior to planting. It should be fertilized again when the plants are approximately 4 inches tall and when they are 8 to 10 inches tall. Approximately 1/4 pound of complete fertilizer for every 10 feet of garden row is sufficient in most areas of Texas.
http://aggie-horticulture.tamu.edu/archives/parsons/vegetables/corn.html
Corn matures at different rates depending on the variety. Early varieties of sweet corn generally require 70 to 80 days to reach maturity, while main crop types may require up to 100 days. The corn tassels about 20 days before the kernels are ready for harvest.
http://homeguides.sfgate.com/corn-plant-tassel-59512.html
Extreme heat stress (100F or greater) can kill corn pollen, but fortunately the plant avoids significant pollen loss by virtue of two developmental characteristics. First of all, corn pollen does not mature or shed all at once. Pollen maturity and shed occur over several days and up to two weeks.
https://www.agry.purdue.edu/ext/corn/news/timeless/Tassels.html
All of the pollen from a single anther may be released in as little as three minutes. All the anthers on an individual tassel may take as long as seven days to finish shedding pollen, although the greatest volume of pollen is typically shed during the second and third day of anther emergence.
https://www.agry.purdue.edu/ext/corn/news/timeless/Tassels.html
how long does it take corn to produce
It takes 70 to 80 days for corn to produce.