寒地早粳稻水条播品种筛选

摘要

以18个寒地早粳稻品种为材料,采用随机试验设计,进行水条播田间对比试验,研究水条播对寒地水稻产量构成因素及产量的影响,从而筛选出适宜在黑龙江省第一积温带下限、第二积温带上限稻作区可用于水条播栽培的水稻品种.结果表明:在18个供试品种中,综合株高、单穗质量、产量构成因素及实际产量,表现较好的为垦鉴稻5号和垦稻19号,较适宜在黑龙江省部分地区进行水条播栽培.%Aiming at selecting rice varieties suitable for drill seeding under water in the lower limit of the first accumulated temperature zone and the upper limit of the second accumulated temperature zone in Heilongjiang Province, this study investigated the effects of drill seeding under water on yield components and yield of rice in cold land. A field trial was conducted according to random block design, using 18 early-maturing japonica rice varieties as tested materials. The results showed that among the 18 tested varieties, Kenjiandao 5 and Kendao 19 had overall better performance in plant height, single panicle weight, yield components, and yield. Thus, they are more suitable than the other varieties for drill seeding under water in some areas in Heilongjiang Province. This study provides a reference for selecting rice varieties suitable for drill seeding under water.