图为嫁接过程示意图,请据图回答 ⑴请填写下列结构的名称: [ 1 ]

图为嫁接过程示意图,请据图回答

⑴请填写下列结构的名称:

[ 1 ]         [ 2 ]         [ 3 ]            [ 4 ]          

A图属于          B图属于         

⑶嫁接能否成功的关键是                         

答案

⑴接穗;砧木;接穗;砧木;

⑵芽接;枝接。

⑶接穗的形成层和砧木的形成层是否紧密地结合在一起。

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