PLANTING DEPTH ASSESSMENT ON GERMINATION AND EMERGENCE OF DIFFERENT LOCAL RICE CULTIVARS GROWN IN...

The effect of different planting depths on germination and emergence of different local rice cultivars, including Mai manja, B.G Doguwa, and Nerica as a control, was tested under varied planting depth circumstances of 2 cm, 4 cm, and 6 cm accordingly. Each of the rice cultivars had three (3) duplicates sown in transparent potting polythene bags at three (3) different seeding depths. The germination rate was assessed by measuring the shoot length (cm) that first sprouted faster twice weekly for six weeks to calculate the germination rate. Root length (cm), biomass (g), and root to shoot ratios of rice cultivars were measured after harvest. The results revealed that seeds of local rice types can emerge from a depth of 6 cm. When the seeds were sown on the soil surface in well-aerated soils with no standing water at 2-cm depth, the seedlings of the local variety, BG Doguwa, were significantly taller at (P0.005), producing increased heights of 97.70 cm compared to Mai manja and Nerica, which had shoot lengths of 80.40 cm and 79.40 cm, respectively. Under the 3 (three) various planting depths, the three cultivars revealed significant variations (P0.001) in emergence and germination characteristics, with both the tested cultivars, including the control variety (Nerica), emerging faster in the 2-cm planting depth. More research is needed to discover appropriate planting depths for various rice varieties, as well as to develop types with better germination and faster seedling emergence, which can produce more vigorous seedling production at varied seeding depths.

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