An Evaluation of the Concentration of Six Phytochemicals Present in Seven Accession of Dioscorea Bubifera

The experiment on Evaluation of the concentration of six phytochemicals present in seven assessions of Dioscorea bulbifera was carried out at the research farm of University of Port Harcourt Rivers state Nigeria. It was laid out in a randomized complete block design (RCBD). Various treatments (Ashes amended with sandy soil (AS), Sawdust amended with sandy soil (SAW), sandy soil (SD), and garden soil as control (CNT) were used with seven assessions of Dioscorea bulbifera which includes; assession 3079, 3083, 3084, 3087, 3089, 3094 and 4121 were  planted on each of the treatments for 8 weeks. Data was obtained by analyzing the leaves. The results shows that
Phytate; There was asignificant difference increase in assession 3083 of SD and 4121 of sawdust treatments as they were compared to the control
Tanin; We experienced a significant difference increase only in assession 3083 of SD treatment as we compared to the control
Oxalate; There was a significant difference increase only in assessions 3083 of SD and 4121 of sawdust (saw) treatment.
Flavonoid; There was significant difference increase in assessions 3083, 3087 and 3089 of SD, 3087 and 3089 of AS treatments when we compared to the control
Alkaloid; Here we recorded a significant difference increase in assessions 3079, 3087, 3094 and 4121 of SD treatment, 3094 and 4121 of SAW treatment. 3084, 3087, 3094 and 4121 of AS treatment
Phenol; we have an increase in 3083, 3987, of SD and 3087, 3089 of AS treatments.as we compared to the control. This has also shown that assessions 4121 and 3083 has a reasonable amount of phytochemicals present in them than the others and sandy soil (SD) as the best soil after the normal humus soil for optimum production of phytochemical.