Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a devastating disease of wheat in Ethiopia and the globe. The disease was dynamic and quite complex with the host (variety and plant spp), the environment, and with the pathogen genetic nature. The genetic alternation or change of a pathogen could affect the resistant population in the area. New race identification helps preparedness for the needs a rise to reduce the possible losses due to the problem. The race analysis dynamics identified three yellow rust races; namely, PstS11, PstS16 and ME2018 and one other unknown new race were the major in recent years but in the 2012-2016 Psts1 and PSTS2 were the dominant once. The new race ME2018 race mixture was increased the risk of stripe race epidemics in the area because it is Yr10-virulence race. So regular monitoring, for early detection and identification of new races was crucial.

This research work was aimed at using locally available plants (duckweed) to remove heavy metals in water samples from Woji Creek in Port Harcourt, Rivers State. The pH, temperature, dissolved oxygen (DO), total dissolved solid, oxidation reduction potential, and electrical conductivity of the water were assessed. The result of the physicochemical parameters showed that the mean value of the electrical conductivity (EC) was highest in June (46. 34±91. 5 µS/cm), temperature was high in June (27.9±1.0 oC), DO was highest in August (9.8±2.0 mg/l), pH had high value for July (7.4±0.7) and TDS for June (3548.0±1638.3 mg/l), which were lower than national and international permissible limit standard except for EC, DO and TDS. The uptake of cadmium by the roots of the duckweed was very high for station 4 (0.7 mg/kg) and shoots for station 4 (2.1 mg/kg). The most uptakes for the Copper by the roots was for station 4 (0.9 mg/kg) and shoot for station 5 (1.3 mg/kg). The percentage of uptake of Cd for the root of the duckweed was 19.3% while the shoots was 32.9% respectively. Cd had the highest accumulation of metals The duckweed plants were significantly good for phytoremediation agents and as such could be employed by industries for such purposes.