What corn varieties can I plant the seeds of next year?

I wouldn't recommend what you want to do but to do so you need the control which stalks produce the pollen to fertilize the silks of the female part of the plant. First you plant only one variety of corn. No other type or variety can be within wind or bug carrying distance. With rows spaced wide enough to work between you plant your corn and wait. As the corn matures and begins to shoot up tassels you remove all but the chosen few to produce pollen. Be careful not to pull the top leaf from the stalk. This is called the flag and to be honest I can't remember why. Just know on detasseling crews you'd get yelled at for doing so. When your chosen pollinators are full of golden pollen you can remove them and collect the pollen in a bag for hand pollenization or let nature take it's course if you confident of you isulation from other corn fields. The pollen must come in contact with the silks on each ear of each stalk via a breeze, insects, or by hand like with a feather. When this is done you isulate each ear from outside pollen sources. Place a small brown paper bag over each ear to be saved for seed corn and leave to mature. That is leave until totally ripe hard and dry. It will be all shriveled up and very hard like when you planted it. This seed will produce the same as it's parent plants. However, It will not be pink like I assume your seed was and may loose some vigor in both growth and germination. The pink is to keep critters from eating the corn before it sprouts incase you didn't know. If your planting large amounts then I would suggest you find a local farm and home store or certified seed dealer on your area and purchase bulk seed from them. It's much less work and much greater chance of success. Besides, with corn you need fertilizer of some kind and that's where to get it. You can purchase anything from a scoop full of seed corn up to 50# bags full if you want and it's out come is time tested, guarrenteed and much more economical. Besides less work! Use you extra time to try another garden crop. Good luck.

you prefer to start with the plant, not it relatively is seeds. It takes a plant 2 years to product a berry. So think of how long it is going to take seeds to grow to be a plant. verify on line for a Plant company which you will desire to purchase them from. it isn't costly.