Sunday, August 28, 2011

transpiration





well...the narrative doesn't match the order of the photos...again...it must mbe my inability to figure out the way firefox does things...but anyway...an acre of corn transpires between three and four thousand gallons of water a day and you can tell that it really needs some rain or some irrigation when the leaves start to curl up...i haven't been to campus since friday...but it has not bee particularly hot either...sunny and breezy though...and that must have been enough to dry out the zea diploperennis because when i got there the leaves were screaming water me! (bottom photo) so i dumped six gallons of water on four plants and about an hour later ( top photo) hey presto the curling had disappeared...just another connection ( morphological or genetic or both?) between zea diploperennis and zea mays.

i cross pollinated the northern tepehuan teosinte plant on campus with the one in the back yard today as well...a month and a half or so until the first frost date..i am hopeful of some seed ears before then...if not, there is ample fresh seed for more plants next season...i will just plant more seeds than this year in an effort to get more than two mature plants.

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