ISHS Acta Horticulturae 813: VI International Symposium on New Floricultural Crops
WHAT IS STRESS AND HOW TO DEAL WITH IT IN ORNAMENTAL PLANTS? |
| Author: | R. Savé |
| Keywords: | Plant water relations, drought, flooding, marine spray, insect ¿ plant relationship |
| Abstract:
In these moments and in our global world it is very difficult to talk about ornamental plants because: what are these plants, what is their use, etc? Similarly talk about stress, what is the stress concept, is it the same in all plants and in all situations or uses of these plants? In order to know which are or will be the stress situations for ornamental plants we will try to discuss the role that can play the study and knowledge of plant water relations of these ornamental species or varieties in relation to biotic or abiotic stresses. As biotic stresses we can find the edge effect on ornamental quality of old urban trees, grasses competitiveness, relationship between pest and plant, symbiotic effects of mycorrhiza on plants used in landscape restoration, among others. Examples of abiotic stresses are water management in nurseries, private houses, gardens and landscape restorations under water scarcity; effects of flooding; potential problems associated to the use of reclaimed water in old parks; grass covers and gardens; light levels into the houses and in the streets; equilibrium between fertilization and contamination; effect of marine sprays on vegetation as an example of new pollutants, etc. From this basic information, plant water relations must be used as a tool in order to improve the productivity of ornamental plants in a wide range of environmental conditions.This information must help to solve, avoid or reduce some vulnerability of ornamental plants to global change. | |
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