indicator plant


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indicator plant

[′in·də‚kād·ər ‚plant]
(botany)
A plant used in geobotanical prospecting as an indicator of a certain geological phenomenon.
References in periodicals archive ?
[25] on the same indicator plant. These symptoms were disappeared spontaneously in about 8-10 days.
Four side grafts were mounted to every indicator plant; each piece of graft tissue consisted of a 4-5 mm thick and 10-12 cm long stick or about 2 cm long rectangular leaf sections containing sliced midrib tissue for semi-hard wood and leaf piece grafting respectively.
Greencompost is the form of compost prepared from green wastes such as garden and farm wastes and its effects were investigated for the improvement of dry matter yield and chemical composition of Lolium perenne grass, as indicator plant. The concentration of various ions in the soil solution is one of the major factors that will be depicted into ionic concentration in plants.
I use it as an indicator plant for deer activity in my moist, shady flower bed.
In the 1930s and 1940s, Russian scientists identified mustard as an indicator plant growing profusely over underground deposits of valuable metals.
Local floodplain farmers in both field areas use Paspalum fasciculatum (Capim-murim [Port.]/ Gamelote [Sp.]) as an indicator plant. This macrophyte grows along both floodplains during the dry season and is a prime indicator of 'good soil' in both places.
Silk states that the "aim of this study is to quantify disturbance in lowland dipterocarp forest in East Kalimantan (Indonesia) with the use of a small set of indicator plant species (Macaranga and Mallotus, Euphorbiaceae).
So, how can it in effect, be an indicator plant? Even if a root can absorb iron, for instance, from chalky soil, perhaps it cannot make the iron complexing compounds.
Hence, the worker did not settle for an indicator plant from among those found abnormal.
So Podleckis' apple scar skin viroid test starts with a viroid-free indicator plant to which he grafts a piece of the quarantined plant to be tested.
At the New School, the plants sprouted in plywood boxes alongside some rather lovely botanical sketches of tumbling saltbush, perennial wall-rocket, annual mercury, and common vervain, all so-called indicator plants that signal the presence of ballast.
There are three basic methods of verifying that grapevines are free of harmful viral pathogens: 1) inoculating indicator plants (mostly herbaceous ones) with tissue from the grapevine being tested; 2) a process called "woody indexing," which involves grafting buds on to a grapevine variety that expresses symptoms; and 3) laboratory testing.