NULL

NULL

NULL

NULL

NULL

NULL

NULL

Thirty-eight isolates of fungi belonging to genera Rhizoctonia, Fusarium and Macrophomina were isolated from diseased faba bean plants, collected from different localities in New Valley governorate, showing root rot and wilt symptoms. The isolates proved to be pathogenic on Masr 1 faba bean cultivar under greenhouse conditions. R. solani, F. solani, M. phaseolina and Fusarium spp. isolates caused root rot diseases; however, isolates of F. oxysporum caused wilt. The virulence of isolates on the tested faba bean cultivar was varied. The highly pathogenic isolates of these fungi were employed in this study. The effect of magnetized tap water (MTW), magnetized agricultural drainage water (MADW) and magnetized seeds (MS) on the severity of root rot caused by R. solani, F. solani and M. phaseolina and wilt diseases caused by F. oxysporum of faba bean was tested under greenhouse and field conditions as well as its effect on plant growth and yield components in the field. The obtained data indicated that faba bean plants derived from (MS) then irrigated with magnetized water, either tap or agricultural drainage water recorded the lowest root rot and wilt severity under artificial soil infestation with any of the tested fungi and/or natural infection in the field compared with non-magnetized seeds (NMS) then irrigated with non-monetized water (NMW), respectively. Plants derived from MS and irrigated with magnetized water (MTW and MADW) gave the highest plant growth parameters (plant height, number of branches/plant) and yield components (number of pods and seeds/plant, weight of 100 seeds and total yield/feddan) compared with those grown from non-magnetized seeds and irrigated with non-magnetized water (tap and agricultural drainage water, respectively). Generally, plants derived from magnetized faba bean seeds and irrigated with magnetized tap water recorded the lowest root rot and wilt severity under greenhouse and field conditions and increased plant growth and yield parameters.

Thirty-eight isolates of fungi belonging to genera Rhizoctonia, Fusarium and Macrophomina were isolated from diseased faba bean plants, collected from different localities in New Valley governorate, showing root rot and wilt symptoms. The isolates proved to be pathogenic on Masr 1 faba bean cultivar under greenhouse conditions. R. solani, F. solani, M. phaseolina and Fusarium spp. isolates caused root rot diseases; however, isolates of F. oxysporum caused wilt. The virulence of isolates on the tested faba bean cultivar was varied. The highly pathogenic isolates of these fungi were employed in this study. The effect of magnetized tap water (MTW), magnetized agricultural drainage water (MADW) and magnetized seeds (MS) on the severity of root rot caused by R. solani, F. solani and M. phaseolina and wilt diseases caused by F. oxysporum of faba bean was tested under greenhouse and field conditions as well as its effect on plant growth and yield components in the field. The obtained data indicated that faba bean plants derived from (MS) then irrigated with magnetized water, either tap or agricultural drainage water recorded the lowest root rot and wilt severity under artificial soil infestation with any of the tested fungi and/or natural infection in the field compared with non-magnetized seeds (NMS) then irrigated with non-monetized water (NMW), respectively. Plants derived from MS and irrigated with magnetized water (MTW and MADW) gave the highest plant growth parameters (plant height, number of branches/plant) and yield components (number of pods and seeds/plant, weight of 100 seeds and total yield/feddan) compared with those grown from non-magnetized seeds and irrigated with non-magnetized water (tap and agricultural drainage water, respectively). Generally, plants derived from magnetized faba bean seeds and irrigated with magnetized tap water recorded the lowest root rot and wilt severity under greenhouse and field conditions and increased plant growth and yield parameters.

Bamboo plants are an essential element in Egyptian agriculture development. Nothing was found on propagation of Dendrocalamus giganteus under the Egyptian conditions. Thus, two trials were done to evaluate the effect of position of cuttings on the stem, time of propagation, indole-3-butyric acid (IBA) treatments, planting method on rooting of culm and culm-branch cuttings of bamboo under greenhouse conditions. Three cutting types (basal, middle and tip) of single and double nodes were collected from culm (main stem) and culm-branch (lateral branch) cuttings of bamboo during September 2004 and March 2005. Culm-branch cuttings were treated for 24h with IBA at 0, 50, 100 and 200 ppm. Cuttings were planted horizontally and/or vertically in clay soil. The experiments were arranged in Randomized Complete Block Design as split plot with three replicates. The obtained data were statistically analyzed and revealed the following: Culm-cuttings showed better rooting and growth parameters compared to culmbranch cuttings. In general, single-node cuttings of culm and culm-branch were better than the double nodes ones. Both branch types showed the highest rootability at March period of propagation. Meanwhile, September propagation was suitable to culm-branch cuttings only. Treated cuttings of IBA showed markedly improvement its rootability. Basal cuttings contained more C/N ratio than that in tip ones. The best results were obtained from treating basal culm-branch cuttings with 100 ppm IBA. Vertical planting of double nodes cuttings reduced its rootability.