 
<translate> Hanyoyin hankali na hankali: Tushen suna girma a tsawon da nisa daga na farko da na biyu na meristem. Canjin jijiyoyin jini shine babban meristem. Tushen yana girma cikin tsawon da faɗi daga cambium na jijiyoyin jini. An bayyana tambayoyin da amsoshin da ke ƙasa. <eng> Stream of consciousness rationale: Roots grow in length and width from primary and secondary meristem. Vascular cambium is a primary meristem. Roots grow in length and width from the vascular cambium.
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