Assessment of yields of 20 varieties of sorghum at two different locations

Sorghum is one of the most cultivated crops in the world, especially in countries with warm climate and dry areas. The aim of this study was to compare fresh matter and dry matter yield of 20 sorghum varieties at locations with different fertility in two sowing dates (in late May and in late June). The highest yield of fresh matter of all had KWS Merlin (Sorghum sudanense) at less fertile location – 1th sowing date (135.41 t/ha). This variety had also the highest value of dry matter yield at the same location (53.58 t/ha). The lowest value of fresh matter yield had KHS5G07 (grain form of sorghum) – 19.13 t/ha, also at less fertile location - 2nd sowing date. And the lowest yield of dry matter had Arsenio, as well the grain sorghum type (4.17 t/ha). Based on the data found it was concluded that it depends more on sorghum variety and its form (grain or non-grain), than on a soil types. From the results is clear that the better time for sorghum sowing is late May and it is also evident that some varieties of sorghum can be grown at different locations with different soil fertility, but with similar yields.