研究了8个旱地春小麦新品种(系)干物质积累、产量及其构成因素。结果表明，各品种(系)在拔节前干物质积累量差异不显著，从拔节到成熟干物质积累量发生明显差异，到成熟时差异显著或极显著。成熟期不同品种(系)的单株干物质积累量存在显著差异性，银春11号最大，较对照品种银春9号高6.62%。单株籽粒干物质积累量以银春11号最大，较对照银春9号高7.74%。折合产量以银春11号最高，较对照增产6.81%，差异显著。千粒重以0711-2最高，达53.27 g；其次是银春11号，二者分别较对照增加9.27%和 6.93%。

The dry matter accumulation， yield and composition factors of eight new spring wheat cultivar in dryland were studied. The results showed that there was no significant difference in the amount of dry matter accumulation before jointing. From jointing to wheat maturity， there was significant difference in the amount of dry matter accumulation. At the mature stage， there were significant differences in the dry matter accumulation per plant among different materials. Yinchun 11 is the largest， which is 6.62% higher than the control Yinchun 9， the dry matter accumulation per plant of Yinchun 11 was the largest， 7.82% higher than Yinchun 9. Yinchun 11 is the highest yield， which is 6.81% higher than the control. 0711-2 had the highest 1 000-grain weight， reaching 53.27 g， followed by Yinchun 11， which increased by 9.27% and 6.93% compared with the control.

S512.1

甘肃省现代农业科技支撑体系区域创新中心重点科技项目(2020GAAS04)。