|Corn Blight Update
Is wild corn
Some scientists say this is very likely. Teosinte is a wild relative
of modern corn which grows in isolated regions of Mexico and Guatemala.
Unlike the large ears found in the sweet corn familiar to most of us,
the ears of teosinte look strange indeed, with only a few large kernels
on a tiny cob. So what's the all the fuss about? If modern corn has been
so improved, what is the fascination with this wild relative?
One species of teosinte can be bred with modern corn. This species may
be resistant to some of the diseases that worry the farming community. As
a source of new genes, teosinte is invaluable. For several of our important
crops, like potatoes, tomatoes and wheat, there are wild relatives that
are being used to improve the commercial varieties.
Scientists are trying to locate Teosinte that have resistance to southern
leaf corn blight.
to Classroom Activities
New evidence for corn's ancestry www.dukenews.duke.edu/research/corn.html
Southern Corn Leaf Blight Symptoms on Corn http://plantpathology.tamu.edu/Texlab/Grains/Corn/corntop.html
The First Genetically Engineered Plant http://www.gene.com/ae/AB/WYW/fink/fink_2.html
Nature of Corn
A search engine for the Corn Growers Guidebook. http://www.agry.purdue.edu/ext/corn/cgg2/search.shtml
Diseases management by crop www.crop-net.com/disease.html#crop
INDEX: Articles about various plant diseases www.ipm.iastate.edu/imp/icm/indices/plantdiseases.html
National Corn Handbook (check out nos. 4 and 10) www.agcom.purdue.edu/AgCom/Pubs/agronomy.htm#4
The Maize Page www.ag.iastate.edu/departments/agronomy/cornpage.html
How Corn Grows www.ag.iastate.edu/departments/agronomy/corngrows.html
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