Effects of Climate Change and Drought-Stress on Plant Physiology
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2014, Vol 2, Issue 4
Abstract
Drought is still limited in most crops is produced. Morphological and physiological knowledge to improve drought resistance under drought conditions created problems important is the fact each of these genetic relationships and processes associated with the exact amount of important plant and grain yield is unknown. The other hand, heritability of grain yield under water is reduced. Improve the performance of drought tolerant cultivars based on morphological and physiological components of plant modification as an important solutionis proposed. One of the key predictions of climate change is that, in some regions, droughts arelikely toincrease in frequency and severity. This will have significant implications for the long-term viability of plantpopulations, especially where water availability plays a keyrole in delineating species ranges. However, while drought and overall aridity are knownto be strong determinants of plant species distributions at the landscape level, much lessis known about the ways in which plant populations respond to changes in drought regime, or the long-term impacts that extreme droughts have on plant communitycomposition, structure, and function. While it is known that drought can cause significantrestructuring of plant communities, relatively few studies have quantified theenvironmental and biological factors that promote plant survivorship under acute moisture stress, especially in topoedaphically heterogeneous landscapes. The capacity forevolution to rescue plant populations faced with increasingly severe drought fromextinction is also poorly understood. This places severe restrictions on our ability to predict the impacts of climate change on plant populations in many environments worldwide. In this papera review Effects of climate change and Drought-stress on plant physiology
Authors and Affiliations
Vahi Alizadeh| Islamic Azad University, Meibod Branch, Meibod, Iran, Vahid Shokri| Islamic Azad University, Qaemshahr Branch, Qaemshahr, Iran, Amir Soltani| Islamic Azad University, Meibod Branch, Meibod, Iran, Mohammad Ali Yousefi| Islamic Azad University, Branch, Dezfoul, Iran
Keywords
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