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

Published 3 June 2003

Photo Gallery:
Twisted Whorl Symptoms in Corn

URL: http://www.kingcorn.org/news/articles.03/TwistedWhorls-0603-Gallery.html

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

[ Return to Twisted Whorls article ]

These images depict the phenomenon known as 'twisted whorl' in corn. The first five images were taken in May 2000 of corn that was at leaf stage V4 (four visible leaf collars). Several days before, no twisted whorls were seen in the field.

The final three images were taken in 1996 of corn that was several leaves older in development.

Click on images for larger versions.

Two plants with twisted whorls, adjacent plant with 'normal' whorl. Plants are about leaf stage V4.	Closer view of plant with twisted whorl. Plants are about leaf stage V4.	Closer view of plant with twisted whorl. Plants are about leaf stage V4.
Closer view of twisted whorl.	Closer view of twisted whorl.	Older plant (about V6) with similar symptom.
'Yellow tops' visible in field after twisted whorls finally unwrap.	Closeup of yellow leaf after whorl unwrapped.

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.

©2003, 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