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Post by MikeH on Dec 28, 2011 14:19:32 GMT -5
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Post by raymondo on Dec 28, 2011 15:51:24 GMT -5
It's interesting that breeders have done this for corn. I wonder if such 'systems' are possible for other crops that are widely grown as GMOs.
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Post by MikeH on Dec 28, 2011 19:30:22 GMT -5
It's interesting that breeders have done this for corn. I wonder if such 'systems' are possible for other crops that are widely grown as GMOs. Of the big three, only canola would need work since soy doesn't cross. Soy self-pollinates before the flowers open which makes cross-pollination rare. Regards, Mike
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Post by oxbowfarm on Dec 29, 2011 8:10:26 GMT -5
Not rare enough. Almost all non-GMO commercial soy varieties are contaminated to some extent and as far as I know you can't get a guarantee that it is GMO free.
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Post by Walk on Dec 29, 2011 10:11:52 GMT -5
I wonder if the soy contamination could occur in the harvesting, trucking or seed cleaning equipment?
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Post by steev on Dec 29, 2011 11:09:31 GMT -5
Once the RoundUp Ready genes have made all the weeds in commercial fields Superweeds, they'll have to come to the organic farmers for Heritage Weeds. Bwahhaha!
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Post by spacecase0 on Dec 29, 2011 12:12:27 GMT -5
"Heritage Weeds" I guess it really has come to that... the GMO mess will never get cleaned up
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Post by 12540dumont on Dec 29, 2011 13:16:20 GMT -5
I guess that makes me happy that the only farmer near me plants beans, peppers, squash on his rotation.
Otherwise, I'd have to fall on my pruning shears. Now someone please tell me why the vile voles do not eat Heritage Weeds?
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Post by MikeH on Dec 29, 2011 17:23:05 GMT -5
Not rare enough. Almost all non-GMO commercial soy varieties are contaminated to some extent and as far as I know you can't get a guarantee that it is GMO free. OK, but how does a certified organic soy farmer maintain his certification if soy crosses to any extent, say more than 5%. I chose 5% based on the fact, if I remember correctly, that organic certification has a 95% threshold which, if you fall below, you lose your organic certification. Added: www.soybeanpremiums.org/find/index.php?state=16Regards, Mike
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Post by raymondo on Dec 29, 2011 18:40:35 GMT -5
I think soybean contamination is more likely after harvest (cleaning, transport, storage and so on) as suggested by Walk. Nevertheless, once contaminated, it's nigh on impossible to un-contaminate it. For commercial growers, the only way to be sure, for soybeans at least, is to source guaranteed non-GMO seed and from then on harvest and clean your own seed.
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Post by DarJones on Dec 29, 2011 21:54:46 GMT -5
The gene in the corn is GA1 and is commonly found in popcorn. Pennsylvania Butter Flavored popcorn is a prime example. It allows any other GA1 corn to pollinate but limits pollination from all non-GA1 varieties. There is another gene TCB1 that could be involved but would require some serious breeding work to incorporate.
I deliberately crossed Pennsylvania Butter Flavored with Buhl sweet corn this year and hope to grow it out in 2012 to stabilize for a sweet corn that contains GA1. This would allow me to prevent GMO contamination of one variety of sweet corn. It will take several years to re-stabilize the sweet corn and verify that it is not easily contaminated from other pollen sources.
DarJones
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Post by littleminnie on Jan 1, 2012 20:41:05 GMT -5
Can a farmer buy corn that is roundup ready and contain Bt too? I don't know why I am wondering.
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Post by paquebot on Jan 1, 2012 22:24:31 GMT -5
Can a farmer buy corn that is roundup ready and contain Bt too? I don't know why I am wondering. Yes, the process is called stacking genes. I think that it's up to 8 different traits which can be stacked. Martin
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