P&PDL Logo


The P&PDL Picture of the Week
for 7 October 2002



Seed Abortion in Corn and Soybean

Bob Nielsen, Purdue Agronomy

Drought stress effects on corn and soybean differ in terms of the calendar timing of the stress and its relative effect on the two crops. July dryness is often considered to be most severe for corn pollination and early grain fill of the developing kernels. August dryness is often considered to be most severe for soybean flowering and pod set. Unfortunately, some areas of Indiana were afflicted with severe dry conditions during all of July and August in 2002, resulting in greater than usual rates of seed abortion (corn and soybean), flower abortion (soybean), or poor pollination (corn).

For information on soybean and drought stress see
http://www.agriculture.purdue.edu/aganswers/2002/9-27_Soybean_Yield_Painful_Reminder.html

For more information on corn and drought stress see
http://www.kingcorn.org/news/articles.02/Grainfill_Stress-0802.html

Click on the small image to view a larger image.

soybean seed abortion
soybean pod abortion corn kernel abortion

Soybean Seed Abortion

Soybean Pod Abortion Corn Kernel Abortion

Back to top of page | Past Pictures of the Week Index


Last updated: 3 October 2002/amv
The Plant & Pest Diagnostic Laboratory at Purdue University