Study on the Adaptability of Oat Varieties in Semi-arid Areas of Gansu
This experiment used 6 introduced oat varieties as materials,and provided a basis for screening excellent feed oat varieties suitable for cultivation in semi-arid areas of Shandan County through comprehensive evaluation of phenological period,agronomic traits,and yield traits.The results showed that all 6 oat varieties were able to complete their growth period in Shandan County,Molasses Longyan 3 had the longest growth period which were 111 d,while Qinghai 444 had the shortest growth period of 100 d.Molasses had the highest plant height of 114.2 cm,which was not significantly different from Everleaf 126 and Longyan 3,but was significantly higher than the rest of oat varieties(P<0.05).Everleaf 126 had the highest hay and seed yields,at 13 163.0 kg/ha and 5 124.2 kg/ha,respectively.Among the 6 oat varieties,Everleaf 126 had significantly higher plant height,stemthickness,longer and wider leaves than other oat varieties,and also had better tillering numbers.Therefore,comprehensive evaluation analysis showed that Everleaf 126 performed the best in the semi-arid area of Shandan County and is suitable for promotion and planting,followed by Molasses and Longyan 3.