主根生长达到一定长度，在一定部位上侧向地从内部生出的许多支根。
...章摘要信息 关键词 ： 小麦 初生根 次生根 禾顶囊壳 全蚀病 [gap=661]Keywords : wheat, seminal roots, secondary roots, Gaemannomyces graminis var.
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块状原丝体的产生紧随其后，其次是茎丝体、绿线体和次生根丝体。
The production of massive protonema immediately follows and then caulonema, chloronema and secondary rhizoides.
走，还是要走的，留下来的不过是一副躯壳，留，还是要留的，我的心就在次生根了。
Go, or go to the left, but a shell, to stay, or to leave, my heart is in the secondary roots.
依照各单位根的功能，小麦根可分为3组：初生根组、次生根下位组和次生根上位组。
According to the function, the wheat roots could be divided into 3 groups: primary root group, lower secondary root group and upper secondary root group.
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