论文部分内容阅读
自20世纪60年代黑龙江省开展寒地早粳水稻育种研究以来,在寒地早粳水稻育种理论研究和实践等方面取得了较大突破。提出了寒地高产株型的特征、“三高”育种理论和选育方法;创制出一批耐寒育种材料,利用常规育种手段育成了较有影响力的几个代表性品种,逐步实现了高产、优质与多抗的结合。我省为我国最北部寒冷稻作区,属大陆气候,为一年一熟高纬度稻区,全省年平均气温0℃,日照长,无霜期短(平均130d),昼夜温差大,这种特定的寒冷生态环境,形成了稻种特殊的
Since the 1960s, Heilongjiang Province started to carry out cold paddy rice breeding in early japonica, it has made great breakthroughs in the research and practice of early rice breeding in cold region. Put forward the characteristics of cold-producing high-yielding plant type, “Three-high” breeding theory and breeding methods; create a number of cold-resistant breeding materials, using conventional breeding methods bred a few influential representative varieties, and gradually High yield, high quality and multi-resistance combination. The province is the northernmost cold paddy region in our country, belonging to the continental climate. It is a high-latitude rice region with a ripening year. The annual average temperature in this province is 0 ℃. The sunshine is long, the frost-free period is short (average 130 days), and the temperature difference between day and night is large. The cold ecological environment, the formation of special rice varieties