title: Diageotropism in Vanilla Roots.
abstract: Diageotropic growth in the dark and geotropic growth in the light occurred in the roots of cuttings of three Vanilla species. The diageotropic response also occurred in far-red, red, orange, and green light, while positive geotropism resulted only if blue light was present.
authors.forename: J E
authors.initials: JE
authors.lastname: Irvine
authors.forename: R H
authors.initials: RH
authors.lastname: Freyre