A laboratory experiment was conducted to determine the allelopathic effect of residues aqueous extract of two ecotype of swallowwort (Cynanchum acutum L.) on germination traits of wheat (Triticum aestivum L.). A factorial experiment based on a completely randomized design with four replications was conducted at Islamic Azad University of Karaj in 2012. Factors were two swallowwort ecotype (Ghaz...

A laboratory experiment was conducted to determine the allelopathic effect of residues aqueous extract of two ecotype of swallowwort(Cynanchum acutum L.) on germination traits of wheat (Triticum aestivum L.). A factorial experiment based on a completely randomized design with four replications was conducted at Islamic Azad University of Karaj in 2012. Factors were two swalloww...

The main objective of this study was to determine the allelopathic impact of dominant species (Calamagrostis epigeios, Rubus idaeus and Chamaenerion angustifolium) of clear-cuttings of Scots pine (Pinus sylvestris L.) forests (Vaccinio-myrtillo Pinetum) on test species germination emphasizing the forest ecosystem establishment. Aqueous extracts of roots and shoots were produced at different gro...

Peanut (Arachis hypogaea L.) is the fourth most consumed oleaginous plant in the world, producing seeds with high contents of lipids, proteins, vitamins, and carbohydrates. Biological activities of different extracts of this species have already been evaluated by many researchers, including antioxidant, antitumoral, and antibacterial. In this work, the allelopathic activity of extracts from dif...

Boscia senegalensis is a drought resistant shrub whose seeds are used in West Africa as food. However, the seeds, or hanza, taste bitter which can be cured by soaking them in water for 4-7 days. The waste water resulting from the processing takes up the bitter taste, which makes it unsuitable for consumption. When used for irrigation, allelopathic effects were observed. Glucosinolates and their...

Allelopathy arises from the release of chemicals by one plant species that affect other species in its vicinity, usually to their detriment. Allelopathic effects have been demonstrated to be limiting factors for species distributions and ecological processes in some natural or agricultural communities. Based on the biphasic hormetic responses of plants to allelochemicals, ecological-limiting-fa...

By using the techniques of tissue culture, bio-assay and laboratory analysis, this paper studied the effects of the allelopathic chemicals from pumpkin (Cucurbita moschata) roots on the seed germination and seedling growth of pumpkin, wheat (Triticum aestivum), and radish (Raphanus sativus). The pumpkin root was cultured on a sterile B5 media, and the concentrations of macro- and microelements,...

a laboratory experiment was conducted to determine the allelopathic effect of residues aqueous extract of two ecotype of swallowwort (cynanchum acutum l.) on germination traits of wheat (triticum aestivum l.). a factorial experiment based on a completely randomized design with four replications was conducted at islamic azad university of karaj in 2012. factors were two swallowwort ecotype (ghaz...

There are numerous reports of nematicidal chemicals in crude plant homogenates, leachates, and decomposing residues. These compounds are usually assumed to be secondary metabolites, which serve as chemical defenses against disease and parasites. When such compounds are released into the rhizosphere, they are known as allelochemicals. The possibility exists to exploit allelochemicals for nematod...

Salinity is one of the main factors that explain the distribution of species in the Baltic Sea. Increased precipitation and consequent increase in freshwater inflow is predicted to decrease salinity in some areas of the Baltic Sea. Clearly such changes may have profound effects on the organisms living there. Here we investigate the response of the commonly occurring cyanobacterium Dolichospermu...