叶面施硅对水稻干物质生产及产量的影响

摘要

The effects of foliar application of silicon on SPAD value of flag leaves,dry matter weight and yield components at grain-filling stage of Shengdao 14 were studied to discuss the influences of silicon on dry matter production and yield formation of rice.The results indicated that foliar application of silicon significantly enhanced the SPAD value of flag leaves,dry matter weight of leaves,stems and sheaths,panicles and grain yield.%为探索硅对水稻干物质生产及产量形成的影响效应,本试验以常规粳稻品种圣稻14为材料,研究拔节期叶面喷施硅肥对水稻灌浆期剑叶SPAD值、干物质重及产量构成因素的影响.结果表明:叶面施硅可显著提高水稻剑叶SPAD值及叶片、茎鞘、穗的干物质重,产量也得到显著提高.