Morphological and Chemical Studies on Influence of Water Deficit on Cassava
Because the populations in poor countries are in some cases increasing much faster than their domestic food production and because the dwindling natural resources. So one of the main goals of Agricultural Research is to provide an adequate and secure food source for the ever-expanding populations. Cassava as a major staple food crop in the tropical Africa, Asia and Latin America. With more attention given to cassava by Agricultural Scientists and the International and National Institutions concerned with alleviation of hunger and poverty a future green revolution in more marginal areas might help to prevent further massive starvation in the coming years. So this article presents an overview of cassava response to water stress. Plant grown under three irrigation regimes of field capacity (FC), some morphological parameters were determined. Some physiological and chemical criteria involved in drought tolerance mechanisms such as total soluble sugars, nutrients concentration, starch and protein content were estimated in leaves and storage roots. Results showed that the best result were T25, the ability of plants grown under extreme drought condition may be due to its ability to regulate the osmotic potential, in spite of this reason, but it has a critical threshold for tolerant the drought stress on cassava.