Allelopathic Effect of Pearl Millet and Sudan Grass on Some Winter Crops

Abstract

Laboratory, greenhouse experiments were carried out in Giza Research Station during 2006 and field experiments were carried out at Sids Research Station during 2005/2006 and 2006/2007 to investigate the allelopathic effect of pearl millet and Sudan grass on some winter crops; (wheat, barley, flax, faba bean, Egyptian clover and sugar beet) through 2005 and 2006 seasons. Laboratory experiments showed that, pearl millet and Sudan grass had a significant inhibitory effect on seed germination of all winter crops, except Egyptian clover. Seedling growth of flax, berseem and sugar beet was also inhibited by both extract. Greenhouse experiment indicated that all crops were affected by pearl millet and Sudan grass root extracts. Field experiment results indicated that wheat, barley and sugar beet were only the crops affected by root extracts. Three chemical components were detected and identified in pearl millet root extract; (2 benzylthio 2-imidazoline monohydrochlorid) , (pentyl acetate) and (glucoronic acid sodium salt hydrate) and another three were detected and identified in Sudan grass root extract (2,6 diemethyl cyclohexane methanol), (4-Amidinodinopyriodine menohydrochloride) and (6-Alpha-Larbinozyl-5 , 7-dihydroxy-8-beta dglucopyranozyl flavone).

Silage review: Animal and human health risks from silage

“…Prussic acid, also called hydrocyanic acid, is a highly toxic compound derived from decomposition process of nontoxic cyanide and glucosides in cyanogenic plants such as sorghum and Sudan grass (Toaima et al, 2014). Stressful environmental conditions, such as those pertaining to the soil, climate, or storage, that retard normal development of sorghum favor the production of prussic acid in subsequent growth (Franzke et al, 1939).…”