Studies on production performance of new triticale lines in alpine pastoral areas of Gansu

In order to screen the suitable area for new triticale lines(P2, P4), the hay yield and nutrition were studied in the alpine pastoral areas(Sunan, Hezuo and Maqu) of Gansu province, with Shida No.1 and Zhongsi 1048 as control. The results showed that significant differences existedin triticale materials, experimental sites and the interaction between triticale materials and experimental sites (P<0.05). The averaged hay yield: P2(14.42 t·ha-1)>P4(11.72 t·ha-1)>Zhongsi 1048(10.03 t·ha-1)>Shida No.1(9.70 t·ha-1),CP content: P2(13.31%)>P4(12.17%)>Zhongsi 1048(8.37%)>Shida No.1(7.40%),NDF content:P2(61.65%)<Zhongsi 1048(63.82%)<P4(64.89%)<Shida No.1(68.14 %),ADF content: P2(41.97%)<Zhongsi 1048(42.15%)<P4(43.35%)<Shida No.1(45.06%). By comprehensive evaluation, the triticale new line P2 was the best with high yield and good quality and was suitable to be planted in alpine pastoral areas of Gansu Province.