Water stress effect on growth and phytochemical content of Clerodendrum volubile
Clerodendrum volubile is an indigenous leafy vegetables known as 'Marigbo' in some parts of Nigeria. It has medicinal properties. The effect of water stress on its growth and phytochemical constituents at different growth stages (pre- and post-flowering) was studied. Matured stem cuttings of C. volubile were planted. At 6 and 15 weeks after planting, sprouted plants were used for the pre- and post-flowering experiments, respectively. For each experiment, the plants were divided into 4 regimes; regime 1 - plants were watered daily (control); regime 2 - plants were watered on alternate days; regime 3 - plants were watered once a week and; regime 4 - plants were not watered at all throughout the experiment. Plant height, number of leaves, leaf area, fresh weight and dry weight of the plant were measured on a weekly basis for 5 weeks and qualitative and quantitative phytochemical screening was conducted at the end of the experiments using standard methods. All growth parameters observed in plants subjected to drought stress were significantly reduced compared to control plants. The range of phytochemicals in the leaves of C. volubile was not significantly influenced by drought stress and ontogeny, however, concentration of the phytochemicals was dependent on severity of stress and growth stage of the plant.
Olukoya, B.M., Sakpere, A.M.A. and Adetunji, A. (2018). Water stress effect on growth and phytochemical content of Clerodendrum volubile. Acta Hortic. 1225, 281-288
indigenous vegetable, secondary metabolites, drought stress