在毛主席革命路线指引下,近年来,我省三季稻种植面积发展很快,产量水平也不断提高,显示了这一新耕作制度的优越性。但目前三季稻的增产潜力还没有充分发挥,主要是晚稻的产量不稳不高,其原因是由于迟插植,迟抽穗,开花期受到寒露风的威胁,加上沿用双季晚稻的品种,在迟植情况下影响到禾苗营养物质的积累和运转,使粒数、粒重、结实率降低。因此,从长远来说,要解决三季晚稻稳产高产问题,最根本的办法是选育出前期生长量大,后期抗寒性强,适应迟植、早熟、高产的新品种类型。而在目前的情况下,通过培育 Under the guidance of Chairman Mao’s revolutionary line, in recent years, the planting area of ​​three-season rice in our province has been developing rapidly and the output level has also been continuously improved, demonstrating the superiority of this new farming system. However, at present, the yield potential of three-season rice has not been brought into full play. The main reason is that the yield of late rice is not stable. The reason is that the late-planting, late heading and flowering are threatened by dew and dew, In late cropping conditions affect the seedlings of nutrients accumulation and operation, the grain number, grain weight, seed setting rate decreased. Therefore, in the long run, the most fundamental way to solve the problem of stable and high yield of late rice in the third season is to breed new types with large growth in the early stage and strong cold resistance in the later period, and to adapt to late planting, early maturity and high yield. And in the current situation, through nurturing