Beth- My simplistic answer (comes from my physiological tree ecology class many decades ago!) was going to be from recall, gibberellins and auxins, so I went to Wikipedia and found support...a more complete answer follows below. Back then, the instructor used table grapes as an example of one of the then new applications for gibberellins, as table grapes doubled even tripled in size within just a few years, and still remain large today:
>From Wikipedia, the free encyclopedia Jump to: navigation, search Gibberellins (GAs) are plant hormones that regulate growth and influence various developmental processes, including stem elongation, germination, dormancy, flowering, sex expression, enzyme induction, and leaf and fruit senescence.[1] >From Wikipedia, the free encyclopedia Jump to: navigation, search Auxins are a class of plant growth substance and morphogens (often called phytohormone or plant hormone). Auxins have an essential role in coordination of many growth and behavioral processes in the plant life cycle. Auxins and their role in plant growth were first revealed by the Dutch scientist Frits Went.[1]. Date: Thu, 19 Nov 2009 23:31:24 -0800 From: [email protected] Subject: Re: [ENTS] Big Oak Tree State Park and Wisconsin Trip To: [email protected] I got to thinking, I know I know...its scary, if humans have abnormal amount of growth hormone they become a giant. I was wondering if there isn't something similar in the plant world, ie an excess of growth hormone in a tree they become a Champion. Beth Trees are the answer.--bumper sticker from Illinois Forest Association email to [email protected] -- Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected] _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/177141665/direct/01/ -- Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected]
