This book contain 14 chapters covering the impacts of abiotic stresses on plant cell metabolisms including their roles in the generation of reactive oxygen, nitrogen and sulfur oxidant species. How, where and when such oxidants are generated in cells during their biochemical reactions. The mechanisms by which these oxidants are generated in peroxisomes, mitochondria and chloroplasts. How varying enzymes are implicated in the generation of oxidant including their homeostasis. Finally, oxidant generations caused by environment fluctuations are also reported.

This works contains 10 separate manuscripts dealing with the evaluation of 16 different Barley (Hordeum vulgare) genotypes. Evaluation included the anatomy of stomata, epidermis and their populations, as influenced by drought and adequate irrigation. Dessication of barley leaves followed in hood to track the pattern of water transpirations of the 16 investigated genotypes. Equations for the estimation of leaf area, leaf size, leaf fresh weigh, leaf bulk density and leaf thickness created through regression analysis. This works are very useful for student, instructors to learn how to perform...