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  1. #1

    Join Date
    Apr 2001
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    194
    Location
    Huntington, WV
    Tractor
    Kubota B2410

    Default Corn spacing

    Im planning on planting some corn this weekend. Im very late, I know, but I wont get the tractor till tomorrow.

    My delima is this, I love white corn, namely silver queen. Some of the others in my (extended) family prefer yellow. I understand that if I plant them close together, they will "cross" and none of us will be happy.

    Anyone know how far apart I need to plant the two varieties to keep them from doing this?

    Jon

  2. #2
    Veteran Member Carl_NH's Avatar
    Join Date
    Apr 2002
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    1,991
    Location
    Coastal NH
    Tractor
    01 Kubota B21TLB, 2010 Ferris 52" ZTR, Cub Cadet 1811, Gravely Super8

    Default Re: Corn spacing

    Jon,

    The wind pollinates when they go to tassle, however you probably will find they come in to tassle (germination) at different times so this may not be an issue. Check the germination dates of each type and this will tell you a lot given both have same water etc. However yu might plant so they are predominantly "with the wind" not up or down wind from the prevailing breezes to minimize this effect.

    We planted 4-6 rows along the field corn and never had any issue with the cross pollination probably due mostly to the germination dates of the sweet to field corn.

    Carl

  3. #3

    Join Date
    Sep 2001
    Posts
    501
    Location
    South Weber Utah
    Tractor
    Kubota B2710

    Default Re: Corn spacing

    Let's see if I can remember my corn genetics.

    There are three types of sweet corn. Su, Se & Sh.
    The Su is a standard sweet corn, it is the older varieties and the sugar in the kernel rapidly changes to starch, as the corn gets older or very shortly after it is picked.

    The Se types are also known as sugary enhanced. They contain more sugar in the kernel, age better and don't starch up as rapidly after picking. The problem with them is that they have a tender kernel and are subject to bruising in picking and shipping.

    The last one is Sh, which is for shrunken gene and shrunken gene^2. These have a very small seed, which tends to rot in the ground, so they need to be planted later in a warm soil and fungicidal treatment of the seed is important for seed survival and germination.

    The first two types can be planted together without ill effects, however the Sh or shrunken gene varieties need isolation from the other types (and field corn, too). Just check the catalog or the web site for Stokes Seed and see what types you are planting. If any are Sh, you will need to isolate them from other types. If I remember correctly, 200 feet is needed for isolation.

    Hope this helps and that I remember all that correctly. It's been a long time since my college days and since I was planting major stands of corn.

    By the way, with the Se and Sh varieties plant and row spacing is important to insure larger ears and getting two ears per plant. Rows need to be 36" apart and plants 12" apart in the rows. This will allow for the best germination and development of the ear.

    Good luck and if this works send me a dozen ears.

    Turfman

  4. #4
    Platinum Member PitbullMidwest's Avatar
    Join Date
    Sep 2001
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    944
    Location
    SE Iowa
    Tractor
    1998 Kubota L2900GST

    Default Re: Corn spacing

    Seed companies pay teenagers a lot of money each year to walk the fields and "detassle" field corn to prevent cross pollination.

    I would think pulling the tassle on sweet corn would have the same result.

  5. #5

    Join Date
    Apr 2001
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    194
    Location
    Huntington, WV
    Tractor
    Kubota B2410

    Default Re: Corn spacing

    For the amount of corn Ill be planting (100 or so plants) it would be feasable for me to detassle as well.

    Have you tried this? Is it a sure fire way to prevent the problem?

    Jon

  6. #6
    Platinum Member PitbullMidwest's Avatar
    Join Date
    Sep 2001
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    944
    Location
    SE Iowa
    Tractor
    1998 Kubota L2900GST

    Default Re: Corn spacing

    I haven't personnally but my farmer-in-laws always plant multiple types of sweetcorn and detassle. The various types don't seem to loose anything in taste.

    Is it sure fire? Nothing in "farming" is ever sure fire. [img]/w3tcompact/icons/smile.gif[/img]

  7. #7

    Join Date
    Sep 2001
    Posts
    501
    Location
    South Weber Utah
    Tractor
    Kubota B2710

    Default Re: Corn spacing

    If you detassle what will pollinate the corn to produce the kernels on the ears?

  8. #8

    Join Date
    Apr 2001
    Posts
    194
    Location
    Huntington, WV
    Tractor
    Kubota B2410

    Default Re: Corn spacing

    Is the tassle the "hair" like stuff on each ear, or at the top of the plant? Just wanting to be sure I do it right [img]/w3tcompact/icons/smile.gif[/img]

    Jon

  9. #9
    Super Member
    Join Date
    Apr 2000
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    5,663
    Location
    Cedartown, Ga and N. Ga mountains
    Tractor
    1998 Kubota B21, 2005 Kubota L39

    Default Re: Corn spacing

    Man are you guys bringing up old bad memories. Back in the 60ís as a high school kid the main form of summer employment was working for Delmonte detasseling corn in N. Illinois. We use to ride a vehicle that had very tall tires and 10 foot walkways on either side of the vehicle. Us kids would bake in the sun pulling the tasselís off the corn for $1.10 per hour. After the first day you learn that with shorts and a T-shirt the corn leaves will cut you to pieces. Very much like a paper cut. So after the first day you wear jeans and long sleeve shirts that get soaked in the morning dew and steam you to medium well by noon. Then there are the bugs which were another story.

    Jon, the tassel is the part at the top of the plant. I donít know much about farming but I will never forget that.

    MarkV

  10. #10
    Veteran Member
    Join Date
    Jul 2000
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    1,344
    Location
    West Virginia (Eastern Panhandle)
    Tractor
    '78 Kubota B6100DT

    Default Re: Corn spacing

    If the tassle it at the top of the plant and that is where the polination takes place then how does cross polination, or de-tassle-ing make any difference one way or the other to the kernels in the ears?

    As you can tell, I'm niether a biologist or a farmer.

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