Talk:Cohesion-tension theory

Merge with Transpirational pull
With regard to the merge the other page is correct. This page is wrong (capillary action in the xylem is not the primary force that pulls water up the xylem vessels). Also this article is more about water than the CT theory. It barely mentions why cohesion of water is important, never mentions adhesion or anything about the tension. Any merge should involve the rewrite of transpirational pull to incorporate the term Cohesion-tension theory. David D. (Talk) 15:16, 10 July 2006 (UTC)

The Transpirational Cohesion article is about a plant behavior and the cohesion-tension theory article is about theories of chemical properties. The two are closely related, and the cross reference in the transpirational cohesion article is correct. But merging the articles would eliminate valuable plant-related information from the conversation. I say, don't merge. Do improve the content of the cohesion-tension theory. —Preceding unsigned comment added by 67.153.148.18 (talk • contribs)

Yes, these are two different things. Capillary action in plants is just an example where you can see cohesion-tension.Lisamh 22:26, 23 September 2006 (UTC)
 * I don't understand your comment that "merging the articles would eliminate valuable plant-related information from the conversation". CT theory is specific to plants. It is also the same thing as transpirational pull. If the "cohesion-tension theory article is about theories of chemical properties" then it is worthless and there is even more reason to merge the two articles. David D. (Talk) 03:01, 25 September 2006 (UTC)

As far as I'm aware, CT theory relates only to plants, the basis of which is transpirational pull. I can't see how merging the two is a bad idea, if your worried that some valuable information would be eliminated you can just put it back - under a subheading if you feel it needs it. —Preceding unsigned comment added by 220.236.145.81 (talk • contribs)


 * I cannot believe in this theory because it doesn't explain how the stream of water starts up again after the winter. If there are no leaves there is also no evaporation to drive the water flow. Also there is no explanation of the fact that cavitation doesn't occur in very small vessels. In fact how could cavitation ever occur driven by simple evapotation. To my stupid brain the pressure in the vessels should be above atmospheric pressure throughout the whole tree. Viridiflavus 23:34, 23 March 2007 (UTC)


 * Read articles by Mel Tyree. There are plenty of good hypotheses for how the flow starts each spring. David D. (Talk) 21:35, 7 May 2007 (UTC)

Rolled back to 1 Oct 2006
An apparently well-meaning user copied and pasted the whole of transpirational pull here on 1 Oct 2006. Only minor edits (like adding links and cats) have been done to it since. So I've rolled this back, so that consideration of merge can proceed on the basis of the article as it was before that attempt at a merge. Clicketyclack 08:49, 27 June 2007 (UTC)