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通过对黑龙江省超级早粳稻品种龙稻5号的株型研究发现,寒地超级稻龙稻5号根系发达,在根干重、根直径、根表面积和根体积等方面都比对照品种具有较大优势;茎秆粗壮,分蘖力强和抗倒伏性强;叶片肥厚,无论长宽都远高于对照品种,且叶片上举基角明显小于对照品种;从穗部性状来看龙稻5号属于直立大穗型品种,一次枝梗的产量贡献率较大。研究认为寒地超级稻品种龙稻5号具有理想株型模式的特点,并且在品质、抗性等方面都有较大的优势,是适合于黑龙江省寒地稻作区生态特点的优质超级早粳稻品种。
Based on the plant type of Longdao 5, a super early japonica rice variety in Heilongjiang Province, it was found that root system of Longdao 5 was more developed than that of the control cultivars in terms of root dry weight, root diameter, root surface area and root volume Big stalk, stalks strong, strong tillering ability and lodging resistance; leaf thickness, both length and breadth were far higher than the control varieties, and the leaf base angle was significantly smaller than the control varieties; from the ear traits Longjiang 5 Belongs to the big upright spike type, the yield of the primary branch is larger. It is concluded that Longdao No.5, a super hybrid rice in the cold region, has the characteristics of an ideal plant type and has great advantages in quality, resistance and other aspects. It is an excellent super early-morning suitable for the ecological characteristics of the paddy field in cold region in Heilongjiang Province Japonica varieties.