If you would like to receive Corny News Network articles and other corny information by email, contact .
Other Corny News Network articles can be viewed at the CNN Archives.

Published 7 June 2004

CNN Image Gallery

Twisted Whorl Symptoms in Corn

URL: http://www.kingcorn.org/news/articles.04/TwistedWhorl-0607-Gallery.html

R.L. (Bob) Nielsen
Agronomy Dept., Purdue Univ.
West Lafayette, IN 47907-2054
Email address:
 

The so-called "twisted whorl" syndrome is a curious oddity that takes the form of tightly wrapped and twisted whorls that appears in young corn at about the V6 leaf stage (six visible leaf collars) of development. The first nine images below are from a field in west central Indiana in 2004. The last two images are from west central Indiana in 2003. For more information about the twisted whorl syndrome, see my accompanying article.

Click on image to open a larger version. To close larger version, click on it.

Field exhibiting twisted whorls.	Prevalence of twisted whorls among plants.
Several plants with twisted whorls.	Single plant with twisted whorl, leaf stage V6.
Single plant with twisted whorl, leaf stage V6, closer view.	Closer view of tightly wrapped #7 leaf and slight "crinkling" of lower base of #6 leaf.
Comparison of #7 leaves of wrapped and non-wrapped whorls.	Plant after recovery from twisted whorl.
Plant after recovery from twisted whorl, closer view of "crinkling" of #7 leaf.	"Yellow tops" of plants after recovery from twisted whorl.
Closer view of "yellow top" of plant after recovery from twisted whorl.

For other Corny News Network articles, browse through the CNN Archives at http://www.kingcorn.org/news/index-cnn.html.

For other information about corn, take a look at the Corn Growers' Guidebook at http://www.kingcorn.org.

©2004, Purdue University, all rights reserved. It is the policy of the Purdue Agronomy Department that all persons shall have equal opportunity and access to its programs and facilities without regard to race, color, sex, religion, national origin, age, or disability. Purdue University is an Affirmative Action employer. This material may be available in alternative formats.

End of document