Finaly, much research work should be completed in the future to detect the members of allelochemicals
responsible for this action and the appropriate methods of fractoination and identification to be exploit on the economic level.
mode of action in germinating wheat seeds, pp: 263-266.
A number of allelochemicals
identified in dodder (Cuscuta spp) plant, including terpenes, phenols, phenolic acids, long-chain fatty acids, and lactose are similar to those in Parkia based products .
Most studies on Allelopathy have focused on the effects of extract from plant organs on seed germination and seedling growth, for it is difficult to identify the allelochemicals
from the effects of competition among plants .
Due to their production of allelochemicals
, plants can regulate the microbial community in their immediate vicinity, endure herbivores, encourage symbiotic improvement, change the physical and chemical properties of the surrounding environment and inhibit the growth of plant competition species that can interfere negatively with local culture, causing economic losses to agriculture (PEDROL et al.
1999) reported that the allelochemicals
produced from decomposition of crop residue could inhibit soil [N.
He describes specific plant interactions, and explains that allelochemicals
have a useful application in producing bio- herbicides for weed control.
There are two methods for creating a more allelopathic crop: One is to enhance existing allelopathy potential, and the other is to insert genes to produce allelochemicals
not found in the crop.
As wheat-seedling density increased, the active concentration of allelochemicals
exuded by wheat seedlings was presumed to increase accordingly, resulting in greater inhibition on the root growth of ryegrass.
These compounds are allelochemicals
which are usually the secondary or waste products of main plants methabolic pathways specially shikimic acid and acetate pathways .
Effects of 1,1 dimethylpiperidium chloride on the yields, agronomic traits, and allelochemicals
of cotton (Gossypium hirsutum L.
Another hypothesis was that allelochemicals
unique to brassicas, principally isothiocyanates (ITCs), may actively suppress disease organisms in a process termed 'biofumigation' (Kirkegaard et al.