This investigation was conducted during two successive seasons of 2006 and 2007 on Flame Seedless grapevines grown at the Experimental vineyard, Plant Pathology Department, Faculty of Agriculture, Assiut University. This experiment was planned to study the effect of Dormex at 3% after winter pruning or combined application of Dormex at 3% and 40 ppm GA3 plus 5 ppm CPPU when the berry was diameter was about 5 mm, respectively, as well as different potassium sources on growth and fruiting of Flame Seedless grapevines. The data obtained during two studied seasons could be summarized under the following main points. - All combination of used vinasse whether by spraying or soil application on the dormex treated vines resulted in a significant increase the leaf area, the percentage of N, P and K and pruning wood weight compared to potassium sulphate on unsprayed dormex vines. - Using vinasse for dormex plus GA3 and CPPU treated vines gave the highest values of yield/vine, cluster weight, the cluster length and berry weight and size. On other hand, gave a pronounced decrease in compactness coefficient, hence produce loose cluster compared to potassium sulphate on unsprayed dormex vines. - Dormex spraying improved T.S.S, reducing sugars and anthocyanin contents and decreased the total acidity compared to control. Contrarily, dormex followed by GA3 plus CPPU spraying was increased the juice titratable acidity and reduced T.S.S. So, using vinasse either as foliar spray or soil dressing improved the chemical properties of berries and overcome the adverse effects due to GA3 and CPPU using in grape production i.e., delayed the berry ripening and reduce full coloration. This advantage will eventually enable growers to produce early and heavy clusters of Flame Seedless grapes, consequently the growers obtained highly marketable yield in surrounding and overseas markets.

This study was conducted in the Experimental Orchard, Faculty of Agriculture, Assiut University, Egypt, to investigate the influence of biofertilization on growth, leaf nutrient status and fruiting of some seedless grape cultivars during 2004, 2005 and 2006 seasons. The experiment was arranged in a split-plot complete randomized block design with four replicates, being a vine as an experimental unit and consisted of 7 treatments. The obtained results indicated that leaf area, pruning wood weight and leaf nutrient composition were significantly increased by using biofertilizers i.e. microbein, biogen and nitrobien. The promotion of such traits was associated with increasing the proportion of biofertilizers and decreasing the applied of mineral ones. Combined application of mineral form at 50% of recommended rate of N (RDN) plus biofertilizers gave the maximum values. - As the interaction, all combinations of Thompson Seedless gave the highest values of such traits compared to the other studied cultivars. Whereas, all combinations of either Ruby Seedless or Flame Seedless gave similar values. - Fertilizing the vines with RDN via mineral form combined with biofertilizers was very effective on improving berry set %, number of clusters and yield/vine compared to RDN in mineral form alone. Combined application of mineral form at 50% plus 100g of biofertilizers gave the maximum values. Ruby Seedless cv. fertilized at different treatments gave the highest number of cluster as well as heavy yield than analogous ones resulted from the combination of Flame Seedless and Thompson Seedless cultivars. - Application of the RND via mineral combined with bio-fertilizer improving the cluster and berry attributes compared to using RND via mineral form only. The best results regarding berry quality were obtained from vines fertilized with N at RDN as 50% via mineral plus 100 g biogen/vine. - Thompson Seedless grapes surpassed Ruby Seedless and Flame Seedless grapes in its quality from the chemical properties stand point, since it contained higher TSS% and reducing sugars %. - All combinations significantly improved the cluster and berry attributes. It is evident from the foregoing results that biofertilizer plus ½ recommended dose of nitrogen was sufficient to get good nutritional status, healthy and productivity of Flame seedless, Thompson seedless and Ruby seedless grapevines. It could be recommended that 100 g of biofertilizer plus 1/2 RDN was sufficient to get a high yield with good quality and very useful in saving N fertilization cost and reducing nitrate pollution.

This study was conducted in the Experimental Orchard, Faculty of Agriculture, Assiut University, Egypt, to investigate the influence of biofertilization on growth, leaf nutrient status and fruiting of some seedless grape cultivars during 2004, 2005 and 2006 seasons. The experiment was arranged in a split-plot complete randomized block design with four replicates, being a vine as an experimental unit and consisted of 7 treatments. The obtained results indicated that leaf area, pruning wood weight and leaf nutrient composition were significantly increased by using biofertilizers i.e. microbein, biogen and nitrobien. The promotion of such traits was associated with increasing the proportion of biofertilizers and decreasing the applied of mineral ones. Combined application of mineral form at 50% of recommended rate of N (RDN) plus biofertilizers gave the maximum values. - As the interaction, all combinations of Thompson Seedless gave the highest values of such traits compared to the other studied cultivars. Whereas, all combinations of either Ruby Seedless or Flame Seedless gave similar values. - Fertilizing the vines with RDN via mineral form combined with biofertilizers was very effective on improving berry set %, number of clusters and yield/vine compared to RDN in mineral form alone. Combined application of mineral form at 50% plus 100g of biofertilizers gave the maximum values. Ruby Seedless cv. fertilized at different treatments gave the highest number of cluster as well as heavy yield than analogous ones resulted from the combination of Flame Seedless and Thompson Seedless cultivars. - Application of the RND via mineral combined with bio-fertilizer improving the cluster and berry attributes compared to using RND via mineral form only. The best results regarding berry quality were obtained from vines fertilized with N at RDN as 50% via mineral plus 100 g biogen/vine. - Thompson Seedless grapes surpassed Ruby Seedless and Flame Seedless grapes in its quality from the chemical properties stand point, since it contained higher TSS% and reducing sugars %. - All combinations significantly improved the cluster and berry attributes. It is evident from the foregoing results that biofertilizer plus ½ recommended dose of nitrogen was sufficient to get good nutritional status, healthy and productivity of Flame seedless, Thompson seedless and Ruby seedless grapevines. It could be recommended that 100 g of biofertilizer plus 1/2 RDN was sufficient to get a high yield with good quality and very useful in saving N fertilization cost and reducing nitrate pollution.

This investigation was carried out at the experimental farm of the faculty of Agriculture, Assiut University, in two growing seasons of 2007/2008 and 2008/2009, respectively to study the performance of five breeding lines of faba bean produced in general research program of Prof. Dr. Esmat A. Waly and Prof. Dr. Sayed A. Abdel-Aal (Dept. of Horticulture, Faculty of Agriculture, Assiut University).A randomized complete block design with five replicates was used, each represented by 5 plots of the lines. Each experimental plot consisted of 5 rows, 3.5 m long and 60 cm wide. Seeds of each lines were planted in hills at 30 cm apart. Data revealed that line Romy 80 gave the highest number of tillers/plant with highest green pod length (cm), green pod width (cm) and the highest value of green pod weight (g) in the first and second seasons, respectively. Line Assiut 125 had the highest number of dry pods/plant and total dry seed yield ( 1ton/fed.)

The present experimental work was carried out in the Vegetable Research Farm, Faculty of Agriculture, Assiut University in two summer seasons (2006 and 2007) to study the effect of two varieties; Balady Quena and Emerald, and their interaction plant spacing; 15, 30 and 45 cm between hills within ridge on productivity of okra plants. Results of the two seasons, noticed that Emerald cultivar showed earlier flowering, longer green pod, higher number and weight of green pods/plant and heavier total yield of green pods/fed. While, Balady Quena showed later flowering, longer plant height and higher branches/plant. The results exhibited that all the yield components and total yield were significantly affected by plant spacing. The wider spacing (45 cm) increased branch number/plant, and number and weight of pods/plant. However, plants grown at 15 cm produced the tallest plants and the highest yield of green pods/fed. The high total green yield may be attributed to higher plant density/fed., at plant spacing of 15 cm, compared to wider spacing. The interaction between varieties and plant spacing was significant in both seasons for plant height, number and weight of green pods/plant and total green yield/fed.

Two investigations were carried out the experimental farm of Faculty of Agriculture, Assiut University, during the winter seasons of 2007/2008 and 2008/2009. The investigation were carried out to study the performance of five faba bean genotypes and identifying and discriminating faba bean lines. Seven RAPD markers were used to detect the genetic variability and relationships among five faba bean lines. The results of RAPD analysis showed that six out of the seven tested primers displayed polymorphism among the all tested lines, while one primers were monomorphic. 47.83% out of 69 bands amplified were polymorphic. Unique DNA fragments with different sizes were detected in particular lines but not in the others using different primers. Unique DNA markers with different sizes were related to some traits such as green pod/plants, weight of dry seeds/plant, tellers/plant and protein content percentage traits the genetic similarity among the five faba bean lines was high, ranging from 96.7% to 76%. The highest similarity and shortest genetic distance were found between Romy 80 and Romy 3. While the lowest genetic distance were found between Romy 80 and Ass. 85/37. The investigation suggested that the RAPD approach showed considerable potential for identifying and discriminating faba bean line.