论文部分内容阅读
本文以东北农业大学和黑龙江省内其它育种单位新选育的及生产上广为利用的十四个不同类型、熟期的水稻品种（系），在超稀植条件下，进行单株产量构成因子的相关分析和遗传通径分析，结果认为，在超稀植条件下水稻高产育种方针是：将穗数控制在合适水平上同时，以保证大穗为基础，以争取较高的结实率为重点目标，并注意提高粒重。
In this paper, fourteen different types and maturity rice varieties newly harvested and used widely by other breeding units in Northeast Agricultural University and other Heilongjiang Province breeding units were cultivated under ultra-thin planting conditions, Factor correlation analysis and genetic path analysis. The results showed that under the conditions of ultra-thin planting, the strategy of high-yielding rice is to control the number of spikes at an appropriate level, to ensure that the large spike is the foundation, in order to obtain a higher seed setting rate Focus on the goal, and pay attention to improve grain weight.