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怀早5号系湖南省怀化地区农科所用怀早3号与测64—7杂交育成的中熟早籼新品种。1990年10月经怀化地区农作物品种审定委员会审定通过,并命名。特征特性本品种株高79.3厘米,株型松紧适中,茎秆粗细中等,分蘖力较强,亩有效穗30万左右,后期无早衰,成熟落色好,全生育
Huai-zao-no.5 was a middle-maturing early indica variety cultivated in Huaihua district of Hunan Province by using Huai-Zao 3 and 64-7 hybrid. October 1990 by the Huaihua Crop Variety Approval Committee approved, and named. Characteristics of the varieties of plant height 79.3 cm, moderate plant type elastic, medium thickness stems, tillering ability, effective acre about 300000 per acre, no premature aging, maturity drop off, full fertility