黑龙江省第二积温带水稻新品种产量稳定性分析

Analysis of Yield Stability of Rice Varieties in the Second Accumulated Temperature Zone in Heilongjiang Province

以黑龙江省第二积温带2014年审定的10个水稻新品种为材料,采用随机区组设计,分析了黑龙江省第二季温带水稻新品种产量的稳定性。结果表明,供试的10个品种中,绥粳16的产量受环境影响较小,稳产性好;龙粳42的产量受环境影响较大,产量不稳定,但在适宜的条件下能够获得高产;参试品种在4个试验地点的表现有很大区别,不同品种在延寿县的表现较好,在方正县的产量差异较大,但是在适宜条件下能获得高产。参试的10个品种中有7个品种其亲本来自2个骨干亲本绥粳3号、绥粳4号,形成2条主干系,由这2大干系参与育成或者衍生出的水稻品种占了供试品种的70%,这7个品种稳产性表现较好。

In order to analysis the yield stability of rice varieties in the second accumulated temperature zone in Heilongjiang Province, a experiment was carried out using randomized block design in 2014, using 10 rice varieties as materials. The results showed that the yield of Suigeng 16 was less affected by the environment, the yield of Longgeng 42 was greatly influenced by the environment, but can get high yield in suitable conditions. There were some differences in the yield stability of the same species in different locations. The varieties had a better adaptability in Yanshou County, the yields of different varieties were different in Fangzheng County, but the varieties can get high yield in suitable conditions. In the 10 tested varieties, the parents of 7 varieties come from Suigeng 3 and Suigeng 4, these varieties had stable yield.