Plants are unable to
escape the hazards of environment in which they grow because of their sessile
habit. To cope with this, many plants undergo variation in one or more
morphological characters in response to both abiotic (e.g., climate andweather) and biotic (e.g., grazing and competition) factors of the environment
as an adjustment to resource availability.
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| Ajuga Species |
This adjustment to
environment is generally referred as phenotypic plasticity. Recently more
attention has been given to the acclimation of morphological, biochemical and
physiological traits of plants along an altitudinal gradient. Abiotic factors
have a significant effect on the morphological variability, despite the fact
that it may be due to ontogenic programming of the plant as well. Abiotic
variables such as water stress, mineral nutrient deficiency and geographical
position may have an impact on the overall plant morphology.
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