allelochemicals


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Related to allelochemicals: semiochemicals

al·le·lo·chem·i·cals

(ă-lē'lō-kem'i-kălz),
Signal substances between individuals of different species. Compare: pheromone.
[G. allēlōn, reciprocally, + chemical]
References in periodicals archive ?
Host preferences of insects seem to be triggered by plant characteristics that affect the insects' performance, including nutritional composition, allelochemicals, and even physical characteristics such as hardness, size, shape, and texture (Renwich 1983; Tabashinik & Slansky 1987; Bruce et al.
In recent years, a large number of plant pathogens (bacteria and fungi) and allelochemical compounds are isolated, identified and the herbicide ability is studied (Hoagland 2001).
The results demonstrated the allelopathic potential of species of this genus, indicating the presence of allelochemicals with a capacity to affect the germination of the target species.
The retarded germination and root and shoot length might be influenced by damage of root and shoot cells due to interference of absorption of nutrients and other growth processes caused by allelochemicals found in seed and leaf extracts (Elisante, Tarimo, & Ndakidemi, 2013).
This evidenced the action of the allelochemicals present in the different extracts of L.
Sorghum is reported to contain many allelochemicals like protocateuic acid, gallic acid, vanillic acid, syringic acid, p-coumaric acid, benzoic acid and p-hydroxybenzoic acid [9].
Crop allelopathy also varies in response to plant age and different development stages manifested varying levels of different allelochemicals and their relative concentrations (An et al.
The bacteria inside the root tissue release allelochemicals those are toxic and repellent to RKN (Grewal et al.
Various practices such as cover crops, crop rotations, mulching and the mix application of the allelochemicals with the herbicides can be used as effective tools in controlling weeds through Allelopathy.
According to Ferreira & Aquila (2000), the allelochemicals can induce abnormalities in the seedlings and necrosis in roots, which are considered the most common symptoms.
Given these mixed results, Watson (2000) concluded that restoration projects designed to replace blue gum with native plants should at least consider the potential effects of persistent allelochemicals in the soil.