The morphological characters and the growing directions of primary roots of corn plants

anatomia anatomie anatomy biological development cereales cereals crecimiento croissance crops cultivos cultivos de grano economic plants feed crops feed grasses fisiologia fonction physiologique glumiflorae grain crops gramineae gramineas graminee grasses growth industrial crops monocotyledons oil crops physiological functions physiologie physiology plant anatomy plantas plantas azucareras plantas feculentas plantas forrajeras plantas industriales plantas oleaginosas plante plante de culture plante industrielle plants racine roots starch crops storage organs sugar crops zea mays