【摘要】 以杂交粳稻辽优9906、辽99优15、辽99优19,常规粳稻盐丰47为材料。在辽西滨海盐碱稻区通过硅肥不同处理试验,研究硅肥施用对杂交粳稻和常规粳稻产量和稻米品质的影响。结果表明:施用硅肥可以提高水稻的穗粒数、结实率、千粒重和稻米的出糙率、精米率,并提高水稻的产量。同时选用杂交组合中产量最好的辽99优19与盐丰47在不同处理下对产量性状进行了分析,发现杂交粳稻辽99优19在穗长、每穗实粒数优势较强,而平均有效穗数、结实率、千粒重方面明显低于盐丰47,说明杂交粳稻的增产主要缘于穗大粒多。更多还原

【Abstract】 The hybrid japonica rice Liaoyou 9906, liao 99 you 15, liao 99 you 19 and conventional japonica rice Yanfeng 47 were used as materials. The effects of silicon fertilizer application on the yield and quality of hybrid and conventional japonica rice were studied in the coastal saline alkali rice area of western Liaoning province. The results showed that the application of silicon fertilizer could increase the number of grain per ear, seed setting rate, 1 000 grains weight, brown rate and milled rice rate, and increase the yield of rice. At the same time, the yield characters of liao 99 you 19 and yanfeng 47 were analyzed under different treatments. It was found that liao 99 you 19 was superior in panicle length and grain number per panicle, but the average effective tiller number per hole, seed setting rate and 1 000 grains weight were significantly lower than yanfeng 47, which indicated that the yield of hybrid japonica was mainly from large grain number per panicle.更多还原