C.N.C. Nwaoguala

This study evaluated the tolerance of maize accessions Edo Statefrom South-South Nigeria to waterlogging stress, a major constraint to maize productivity. This study was conducted in a screen house at the Faculty of Agriculture, University of Benin, the experiment was in a Completely Randomized Design (CRD) with six Accessions from South -South replicated three times. The Accessions were obtained from Aduwawa, Agbede, Auchi, New Benin, and Useh were pre-treated, and waterlogging was induced at the five-leaf stage (5LS) for four weeks. Neem leaves were used as an organic insecticide, and fertilizer was applied to support growth. Data on plant height, leaf dimensions, number of leaves, tasseling, silking, pollen shedding, ear height, adventitious roots, and plant mortality were collected as from 2 weeks after planting . The results showed
significant plant death due to hypoxia, with few surviving genotypes like Useh,Aduwawa and New Benin but failed to produce grain, likely due to high screen house temperatures that could have disrupted pollination.The results also showed that accession from Useh
showed the highest growth characteristics on leaf breadth and leaf area, despite the waterlogging effect. Some Accessions also showed high value for healthy leaves under waterlogging, indicating that amongst all accessions used in the study, Accession Useh
has the potential ability to grow and thrive on waterlogged soil.

Monodora myristica is a perennial, edible plant used in West Africa and other parts of the world for its medicinal and culinary value. There is paucity of data on the nutritional contents of M. myristica seeds in the four regions of Nigeria where the seeds are easily available. This study was undertaken to determine the mineral contents of M. myristica (African nutmeg) seeds from Abuja, Awka, Benin City and Ondo Towns. Seeds of M. myristica used were deshelled, oven-dried and ground into fine powder. The powdered sample was subjected to mineral analysis using atomic absorption spectrometry. The mineral analysis showed that there were highly significant differences in the mineral contents of African nutmeg samples sourced from the various locations in calcium, chromium, potassium and zinc. But the iron, magnesium, manganese, and sodium contents were not significantly different from one location to the other. The results showed that the Monodora myristica seeds are rich in minerals and that the content levels vary in some minerals as a result of the location. This may be as a result of the different soil types and the nutritive state of the soil
where the plants were grown. It should also be noted that no particular location exhibited better mineral element composition across all the minerals studied. More mineral elements both beneficial and harmful should be studied in African nutmeg from more locations

This study was conducted to assess the tolerance of maize genotypes from northwest, Nigeria in order to screen for the genotypes that could withstand waterlogging stress. The experiment was carried out in a screen house of the Department of Crop Science, Faculty of Agriculture, University of Benin, Nigeria. There were 6 genotypes from (Kaduna, Kano, Katsina, Kebbi, Jigawa, Sokoto) states tested for waterlogging stress at 4 weeks after planting. There were three replications
The experiment was laid out in a completely randomized design (CRD). Data were collected from 2 weeks after planting till 10 weeks. Key parameters measured included plant height, left length, leaf breath, number of leaves, chlorotic leaves and number of dead leaves. At the end of the experiment, few replications of Sokoto accession survived the
waterlogging stress but due to the high temperature of the screen at the time, the replications could not set seed. Overall, this study provided valuable insights into maize responses to waterlogging stress, which would aid breeding programme where genotypes that can be used for developing resilient maize varieties with improved tolerance to
waterlogging were identified.