geotropism

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geotropism

 [je-ot´ro-pizm]
tropism in response to gravity, i.e., either toward or away from the earth; growth influenced by gravity.

ge·o·tax·is

(jē'ō-tak'sis),
A form of positive barotaxis in which there is a tendency to growth or movement toward or into the earth.
Synonym(s): geotropism
[geo- + G. taxis, orderly arrangement]

geotropism

(jē-ŏt′rə-pĭz′əm)
ge′o·tro′pic (jē′ə-trō′pĭk) adj.

geotropism

see GRAVITROPISM.

geotropism

) a plant growth movement that occurs in response to gravity. Thus roots are positively gravitropic (growing downwards), while shoots are generally negatively gravitropic (growing upwards).
References in periodicals archive ?
The root was severely tapered by the compact layer below 70 mm, although geotropic growth was maintained.
Description: Flowers are geotropic and are arranged on a thick stem in a one-sided spike or spikelike raceme.
Some flowers, such as gladioli and snapdragons, are packed in upright boxes, called hampers, to prevent unsightly geotropic bending.
Investigation of the reciprocity rule by means of geotropic measurements.
Detailed operational procedures of the TRV chair have previously been published including the clinical distinction between canalolithiasis and cupulolithiasis that relates to the timing and excitation of geotropic or apogeotropic nystagmus, respectively [13, 19].
For example, the 'saxophone growth' type (Tomlinson, 1990), which is characterised by a geotropic growth of the trunk in the early stages of development, ensures an effective underground protection of the apical meristem of juvenile palms and acaulescent adults.
Unique Characteristics: Flower stem is geotropic in that stems bend away from gravity.
A tall container made of wooden slats or corrugated cardboard used to ship tall flowers, especially those that are geotropic, such as gladiolus.