They are complex polyploids, being partly tetraploid and partly hexaploid.

它们是复杂的多倍体，其中一部分是四倍体，一部分是六倍体。

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This paper briefly deals with the history and status quo of mulberry polyploid breeding and describes characters and economic value of the polyploids, in particular triploid and tetraploid.

本文简述了国内外桑多倍体育种的历史与现状，以及多倍体特别是三、四倍体的特征特性和经济价值。

youdao

This paper briefly deals with the history and status quo of mulberry polyploid breeding and describes characters and economic value of the polyploids, in particular triploid and tetraploid.

本文简述了国内外桑多倍体育种的历史与现状，以及多倍体特别是三、四倍体的特征特性和经济价值。

youdao