Effect of sowing date on the grain yield of food barley at Adet
1996
Minale Liben | Alemayehu Asefa | Yeshanew Ashagrie (Adet Research Center, Bahir Dar (Ethiopia))
The experiment was conducted during the main cropping seasons of 1990, 1992 and 1993 on Nitosols of Adet Research Center to determine optimum sowing date for barley varieties HB-100, HB-99 and adet local. The sowing dates were set from 26 May to 15 July in an interval of ten days. The treatments were arranged in split-plot design where varieties were assigned to the main plots and sowing dates to the sub-plots. Among seasons the highest mean grain yield (28.67 q/ha) was obtained in 1992. There were significant grain yield differences (P less than 0.01) due to varieties and sowing dates. Interactions of sowing date and variety were significant in 1990 and 1992. Averaged over seasons, higher mean grain yields were obtained from 26 May and 5 June plantings. A linear decline of grain yield was observed with delay in planting. The results indicate that the optimum time of planting barley in Adet area is late May to mid June.
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