Survival
Root hair cells can survive for 2 to 3 weeks and then die off. At the same time new root hair cells are continually being formed at the tip of the root. This way, the root hair coverage stays the same. When a new root hair cell grows, it excretes a poison so that the other cells in close proximity to it are unable to grow one of these hairs. This ensures equal and efficient distribution of the actual hairs on these cells.
It is, therefore, understandable that re-potting must be done with care, because the root hair cells are pulled off for the most part. This is why planting-out leaves the plant withered for some time.
Read more about this topic: Root Hair
Famous quotes containing the word survival:
“The planet’s survival has become so uncertain that any effort, any thought that presupposes an assured future amounts to a mad gamble.”
—Elias Canetti (b. 1905)
“I do not approve the extermination of the enemy; the policy of exterminating or, as it is barbarously said, liquidating enemies, is one of the most alarming developments of modern war and peace, from the point of view of those who desire the survival of culture. One needs the enemy.”
—T.S. (Thomas Stearns)
“We hold on to hopes for next year every year in western Dakota: hoping that droughts will end; hoping that our crops won’t be hailed out in the few rainstorms that come; hoping that it won’t be too windy on the day we harvest, blowing away five bushels an acre; hoping ... that if we get a fair crop, we’ll be able to get a fair price for it. Sometimes survival is the only blessing that the terrifying angel of the Plains bestows.”
—Kathleen Norris (b. 1947)