Screening of triticale germplasm in different areas of Qinghai

【Objective】 To screen the suitable triticale materials in different areas of Qinghai Province and the most suitable triticale areas in Qinghai. 【Methods】 Using Gannong No. 4, Gannong No. 2, and line C25 triticale germplasm as materials, through the comparison of production performance and nutritional quality in different areas of Qinghai Province (Tongde, Huangzhong, Geermu), thus concluding that suitable for Qinghai Triticale germplasm and region of cultivation. 【Results】 (1)The three triticale germplasms, the production performance index of C25 was significantly higher than that of Gannong No. 4 and Gannong No. 2; the neutral detergent fiber content of C25 (46.75%) was the lowest, significantly lower than the other two triticale varieties; Gannon 2 had the lowest ADF content (32%), followed by C25 (32.77%), significantly lower than other triticales germplasm.(2)The production performance index(hay yield, plant height, number of branches) of triticale in Tongde experimental site was significantly higher than that in the other two experimental sites; the soluble sugar content (9.41%) of triticale in Tongde experimental sitewas significantly higher than that in the other two experimental sites.(3)Tongde C25 had the highest hay yield (11.19 t/hm²), which was significantly higher than other levels; Huangzhong Gannong 4 had the highest soluble sugar content(11.60%),followed by Tongde C25, which was significantly higher than other levels; Huangzhong C25 had the lowest NDF content (41.67%), which was significantly lower than other levels. (4) Tongde C25 ranks first, Huangzhong C25 ranks second and Tongde Gannon 4 ranks third. 【Conclusion】 The triticale material suitable for planting at the Tongde test site is C25, followed by Gannon No. 2; The triticale material suitable for planting at the Huangzhong test site is C25, followed by Gannon No. 4; The triticale material suitable for cultivation at the Golmud test site is C25, followed by Gannon 2.Among the three test sites, Tongde is the most suitablefor growing triticale; Among the three triticale germplasm, triticale C25 is the most suitable for planting in Qinghai.