胁迫处理对甜玉米种子贮藏物质利用与消耗的影响

Effects of Stress Treatment on Utilization and Consumption of Storage Substances in Sweet Corn Seeds

以广东甜和华珍2号两个甜玉米种子为材料,探讨了不同胁迫处理对其幼苗萌发过程中贮藏物质利用与消耗的影响。结果 表明:3种胁迫处理下,广东甜玉米种子的幼苗生长优于华珍2号;在萌发期10 d内两个品种的种子贮藏物质消耗率均持上升趋势,而贮藏物质利用率却呈先上升后平稳或下降趋势;相关性分析表明幼苗质量与贮藏物质利用率显著相关。通过分析不同胁迫处理对甜玉米种子萌发期贮藏物质消耗与利用率的影响,为提高甜玉米种子发芽及幼苗生长提供理论基础。

Using two sweet corn seeds of Guangdong Tian and Huazhen No. 2 as materials,the effects of different stress treatments on the utilization and consumption of stored substances during seedling germination were discussed. The results showed that under three stress treatments,the seedling growth of Guangdong Tian sweet corn seeds was better than that of Huazhen No.2. Within 10 days of the germination period,the consumption rate of seed storage materials of both cultivars maintained an upward trend. However, the utilization rate of stored substances showed a trend of increasing first and then stabilizing or decreasing. Correlation analysis showed that seedling quality was significantly correlated with the utilization rate of stored substances. By analyzing the effects of different stress treatments on the consumption and utilization rate of storage substances at the germination stage of sweet corn seeds, this paper provides a theoretical basis for improving the germination and seedling growth of sweet corn seeds.