plagiotropic


Also found in: Encyclopedia.

pla·gi·ot·ro·pism

 (plā′jē-ŏt′rə-pĭz′əm)
n.
Growth of a plant part at an oblique angle to a stimulus, such as gravity.

pla′gi·o·tro′pic (-ə-trō′pĭk) adj.

pla•gi•o•trop•ic

(ˌpleɪ dʒi əˈtrɒp ɪk, -ˈtroʊ pɪk)

adj. Bot.
growing more or less divergent from the vertical.
[1880–85]
References in periodicals archive ?
It is also important to mention that although the majority of studies of the cocoa propagation have been developed in plagiotropic branches, the methods in general are also applicable to the orthotropic material, since there is no evidence of real difference between the two types of growth, as mentioned by CHEESMAN (1935).
Dry matter in fruits, leaves and plagiotropic branches of grown coffee trees in the western amazon.
TABLE 1: Averages of growth and healing quality of the grafts in plagiotropic branches of Araucaria angustifolia with trunk propagules, 180 days after the grafting.
Canopy diameter, in meters, was measured perpendicular to planting rows, measuring the farthest distance between the first pair of leaves from opposites plagiotropic branches.
In orthotropic branching, the axes are upwardly inclined and the leaves are arranged around them in more or less radial symmetry, whereas in plagiotropic branching, planes of foliage are formed from leaves arranged along the sides of nearly horizontal twigs [14].
The rates of invasion and naturalization have been assigned to the combination of several ecological strategies (Klich, 2005): 1) the huge capacity for sexual reproduction, which secures the existence of a persistent seed bank (recently collected seeds showed 75% germination); 2) vegetative expansion that takes place from a gemmiferous, plagiotropic root system (physical fragmentation of the roots is translated into the release of bud dormancy, and new shoots appear over the soil surface); 3) its adaptive capacity is noticeable for achieving several allometric forms, a result of environmental heterogeneity; and 4) a variable root growth architecture that responds to different soil physical situations.
No plagiotropic growth was observed and the plants showed a well-developed root system capable of sustaining further shoot outgrowth.
Determinate branch development in Alstonia scholaris (Apocynaceae) the plagiotropic module.
The upper third of the plant is where the largest number of plagiotropic branches producing coffee occur (Sandy et al.