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黄豆开花要多少时间
更新时间: 2020-10-23 00:00:00  

黄豆开花一般需要50到60天。

黄豆属于豆科大豆属一年生草本,高30到90厘米。茎粗壮,直立,褐色长硬毛。叶通常具3小叶,托叶具脉纹,被黄色柔毛,叶柄长2到20厘米,小叶宽卵形,总状花序,短的少花,长的多花,总花梗通常有5到8朵无柄、苞片披针形,被糙伏毛,小苞片披针形,被伏贴的刚毛,花萼披针形,花紫色、淡紫色或白色,基部具瓣柄,翼瓣蓖状。荚果肥大,稍弯,下垂,黄绿色,密被褐黄色长毛,种子2到5颗,椭圆形、近球形,种皮光滑,有淡绿、黄、褐和黑色等多样。花期6到7月,果期7到9月。

关键词: 黄豆 开花 多少 时间

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