Early Water Stress

flamm at oznet.ksu.edu flamm at oznet.ksu.edu
Wed Aug 30 10:20:46 EST 2000


I have a current study where varying levels of water stress (0, 1, 2,
3, 4, and 5 weeks delay in irrigation) occurred PRIOR to silking of
corn. After initiation of irrigation for a given treatment they were
subsurface drip irrigated at 0.4 inches/day until the calculated soil
water deficit was in an acceptable range and then maintained at that
level.  Over the summer that's required between 18-19 inches of
irrigation, so far.

I know these levels of stress will affect ear length size.  My
question is would there be much expectation for different number of
kernel rows around the cob??????.  There is only one hybrid, Pioneer
3162.  Is number of rows primarily genetic??.  If not is it set at an
earlier time than kernels/row (the length factor)?????

Freddie
*
-------------------------------------------------------
    o   Freddie Lamm   **It's all downhill from here.
* /|\   Research Agricultural Engineer
***\\    KSU Northwest Research-Extension Center
*****     105 Experiment Farm Road
*******      Colby, Kansas USA 67701-1697
*********     Phone:785-462-6281 FAX: 785-462-2315
***********    E-Mail: flamm at oznet.ksu.edu
*************   SDI Website: http://www.oznet.ksu.edu/sdi/
***************  General Irrigation Website:http://www.oznet.ksu.edu/irrigate
THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ.







More information about the Maize mailing list