Journal of Food, Agriculture and Environment

Salt gradients near roots of a rose plant by using a model system

Author(s):

S. Bougoul ^1*, A. Jaffrin ²

Recieved Date: 2003-08-18, Accepted Date: 2004-01-15

Abstract:

The ionic concentration of the nutrient solution absorbed by a plant may dramatically vary over a period of 24 hours; yet, it is not common to modify the feeding solution at this short time scale. Any lasting discrepancy will generate concentration gradients at the root surface, possibly responsible for plant stress and stomatal closure, but such local gradients are diluted in the drainage flow and their intensity is usually underestimated. A direct evidence of salinity gradients was obtained by piling absorbing paper sheets directly in contact with the bare root system of a rose plant grown with a nutrient film technique (NFT). After a period of high transpiration rate, paper sheets exhibited very different salt contents at various distances from the root surface. These concentration gradients can be only alleviated by efficient washing through a high rate recycling of drainage solutions.

Keywords:

Saline gradients, rose plants, root surface, experiments

---

Journal: Journal of Food, Agriculture and Environment
Year: 2004
Volume: 2
Issue: 1
Category: Agriculture
Pages: 271-275

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :