In maize, the fibrous roots develop from
Lower nodes
Upper nodes
Upper internodes
None of the above
$A$ : Epiphyllous roots arise from the margins of leaf lamina.
$R$ : Epiphyllous roots help in vegetative reproduction.
In a longitudinal section of a root, starting from the tip upward the four zones occur in the following order :
Give main functions of root system.
Edible part of Sweet potato is
Pneumatophores are characteristics of family