Abstract:

In order to select the fine varieties of spring wheat suitable for the cultivation in Gannan Tibetan Autonomous Prefecture, The regional tests were conducted on the seven introduced new varieties of spring wheat (Gaoyuan142, 7059, 7060, Dingfeng12, 98248, 98y003-6 and Linmai30) by analysis on yield, variance, yield of high and stability(adaptive), comprehensive of Agronomic traits through at five different natural climate points and production levels in Gannan Tibetan Autonomous Prefecture. The results showed that the average yield of the seven varieties was equivalent to 3717.45~4686.90 kg/hm2 compared with the control of Linmai30with the increased range from 14.33% to 26.08%, from high to low as Dingfeng12>7060>98248>98y003-6>Gaoyuan142> 7059>Linmai30. Both varieties and points showed notable difference, the yield of Dingfeng12 reached extremely significant level compared to the control of Linmai30. The main effect of the two varieties of Dingfeng12 and 7060 presented bigger, the yield relative was better and the interaction variance and relative coefficient of variation was also small compared to other varieties. In addition, growth period, plant height, spike length, spike number, grain weight per spike and grain weight of comprehensive agronomic traits have also performed better. All of which mentioned above indicated that the two varieties of Dingfeng12 and 7060 were suitable for different regions with high yield and good stability, which could be used in the production and large area promotion in Gannan Tibetan Autonomous Prefecture.