Browsing by Author "Isak Sirak"

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    The Effect of Different Soils on the Gorwth and Yield of Some TEf Cultivars
    (Addis Ababa University, 1982-06) Isak Sirak; Berhan Tewolde (PhD)
    Observation of yields of tef tested in national yield trials (NYT) at different sites and at different times have given variable results. It ~/aS assumed that differences in the tef yields ~Iere probably due to environmental factors. Therefore, eleven cultivars (of 1980-81 in the NYT) were seeded on six different soils, collected from different places, in plastic pots ",ith a capacity of 2 kilograms in a randomized complete design in two blocks and qrown in a areen house where environmental conditions such as humidity, sunshine hours, temperature, were identical for all the treatments. The pots containing the plants were watered as required with distilled water until the olants achieved physiological maturity. During the growth period, various parameters such as height, tiller number, days to heading were recorded and quantified. After harvest dry weight and seed weight of cultivars \~ere measured. The data obtained were subjected to various statistical analyses. The results indicated that. the tested tef cultivars adapted better in soils dominated by silt along with aC'equate quantities of available nitrogen and potassium.