为促进苏北沿海垦区(盐碱地)水稻获得高产,以“武运粳21”、“南粳9108”、“淮稻5号”为供试材料,研究了当前海丰地区部分水稻主栽品种的生长特性。结果表明,供试品种中“淮稻5号”产量最高,其高产主要是通过提高单位面积有效穗数、千粒重和确保相对较高的每穗粒数来实现的;各品种全生育期相差不大,但“淮稻5号”抽穗前天数明显较其他品种长,但其成穗率相对不高。 In order to promote the high yield of rice in reclamation area (saline-alkali land) in Northern Jiangsu Province, the current “Haoyun area” was studied with “Wuyunjing 21”, “Nanjing 9108” and “Huaijiang 5” Growth Characteristics of Some Major Rice Varieties. The results showed that the yield of “Huai 5” was the highest in the tested varieties, and its high yield was mainly achieved by increasing the effective panicle per plant, the 1000-grain weight and ensuring the relatively high grain number per spike. The full growth period However, the number of days before heading was significantly longer than that of other varieties, but the heading rate of “Huai 5” was relatively low.