Two field experiments were carried out at a Farm in El-Mataryia district, Dakahlia Governorate during the two growing seasons of 2011 and 2012 to study the effect of organic fertilization and ammonium thiosulfate (ATS) levels that reduce salinity effect on vegetative growth, yield and its components and chemical constituents of eggplant crop Black Beauty cultivar. The experiments were carried out by using splitplots system in a randomized complete blocks design with three replications. The main plots were arranged with organic fertilization treatments. The sub plots were assigned to ammonium thiosulfate levels. The obvious results of this investigation can be summarized as follows: Using farmyard manure (FYM) and potassium humate (KH) treatments significantly increased all studied characters as compared with other organic fertilization treatments in both seasons. Application rice residues (RS) caused significant increases on all studied characters as compared with control treatment (without organic fertilization) in both seasons. All studied characters were significantly influenced by different ATS levels in the both seasons. The highest values of these traits were resulted from using 30 L/fed and 40 L/fed of ATS, respectively in both seasons. Generally, it could be recommended that using FYM or KH, respectively along with 30 L ATS/fed to enhance vegetative growth characters, yield and its components and chemical constituents of eggplant fruits. Also, it could be recommended that using RS combined with 30 L ATS/fed to enhance studied characters as compared with control treatment (without organic fertilization) and also to reduce sources of environmental pollution and maintain human health.

This research was carried out at El-Baramoon Horticulture Research Farm, Dakahlia Governorate, Egypt, during the summer seasons for five years. Seven cowpea genotypes, including 6 selected lines and Cream 7 cultivar were grown in randomized complete blocks design with three replications. These inbred lines obtained from Cream 7 cultivar after five generations of inbreeding and selection and were evaluated. The differences among means of most tested lines appeared significance and all the selection lines were superiors than check cultivar for the total yield trait of cowpea. The results indicated that the strains S3, S2 and S6, respectively were superiors than check cultivar (Cream 7) for the qualitative and quantitative traits of cowpea crop. The results revealed that the pure line selection method within Cream 7 cultivar proved to be effective in separating new promising white lines superior of yield and quality. A correlation study indicated that the existence of high positive correlations between total yield and each of number of pods per plant, pod filling, dry weight per plant and 100 seed weight. On the other hand, all the studied traits except pod length and pod width were positively correlated with total yield at the two seasons of study. Finally, it must be concluded that such new selected superior lines S3, S2 and S6 respectively had superior for the qualitative and quantitative characters, in addition, their adaptability for Egyptian conditions. So, it could be utilized commercially as new promising cultivars or in breeding programs to be utilized from some promising traits.