Response of some plant species towards the allelopathy of two types of chickpea (Cicer arietinum L.) seed extracts

Abstract

The investigation was planned to study the chemical composition and allelopathic consequence of two types of chickpea against three weeds of the chickpea crop by using ethanolic extracts. The experiment was carried out in the University of Sulaimani, College of Agricultural Sciences, Sulaimani, Iraq. The extracts of two types, kabuli and black desi seeds, were analyzed by GC/MS, showing that the main constituents of eugenol (86.35%), beta caryophyllene (6.56%) and caryophyllene oxide (5.24%) for black desi seeds and eugenol (89.67%) and methoxy acetic acid, 3-tridecyl ester (3.47%) for kabuli seeds. The results showed that all seed extracts displayed significant allelopathic impact, whilst, the powerful of allelopathy of two types of chickpea differ from species to species of weeds. Based on the outcomes, the kabuli seed ethanolic extract showed the maximum degree of seed germination percentage inhibition of all plant species. The extracts acquired from the two types of chickpea caused significant reduction in radical and shoot length of all plant species. Based on the consequences, it can be determined that chickpea types exhibited good allelopathic potential that may be utilized in future as bio-herbicide screening program to launch in the market.