Basil (Ocimum basilicum) is an annual herb plant belonging to the Lamiaceae family that is used as a drug, spice and fresh vegetable. In order to study the effects of different levels of water stress on some morphological and biochemical characteristics of purple basil, a pot experiment was conducted in randomized complete block design with six treatments and three replications in growth chamber. The different levels of water stress were 100 (control or non-stress), 90, 80, 70, 60 and 50% of field capacity. The results of statistical analysis showed that water stress has significant effects on morphological and biochemical characteristics. As the soil water content decreased, the plant height, stem diameter, number and area of leaves, Leaf Area Index (LAI), herb yield and leaf chlorophyll contents (a,b and total chlorophyll) decreased but the amounts of anthocyanin and proline increased.
H. Moeini Alishah , R. Heidari , A. Hassani and A. Asadi Dizaji , 2006. Effect of Water Stress on Some Morphological and Biochemical Characteristics of Purple Basil (Ocimum basilicum). Journal of Biological Sciences, 6: 763-767.