الفهرس | Only 14 pages are availabe for public view |
Abstract Greenhouse as well as micro plot (out door) experiments on the efficacy of certain plant oil extracts i.e. garlic 1%, sesame 5% and Egyptian lupine 1% or sesame oil cake applied singly and/or mixed with oxamyl for controlling Meloidogyne incognita infecting sunflower c.v. Eurofloura revealed that all treatments improved sunflower growth, and reduced root galling. Sesame either at 5% or oil cake singly achieved the highest values of percentages of increase for whole plant fresh weight and shoot dry weight for greenhouse plants; and for microplot, respectively. Concomitant treatments using any plant oil extracts tested or sesame oil cake integrated with oxamyl showed better increase of plant growth parameters than those of oxamyl alone. Sesame 1.5% plus oxamyl at recommended (half dose) application surpassed other plant oil extracts applied singly or with oxamyl in suppressing of juveniles (J2) number per 250 g soil as well as nematode galls. Moreover, great suppression in number of nematode galls per root system of sunflower was recorded with sesame oil cake mixed with oxamyl for microplot plants. Obviously, seed weight/head, weight of 100 seeds and seed oil percentage were significantly increase in microplots receiving concomitant treatment with values of 75.2, 160.87 and 22.8% as compared with single application, respectively. |