The experiments were conducted on watermelon (Citrullus lanatus L.) at an a private farm in Awlad Amr village, Qena city, Qena, Egypt located between 26° 10′ 0″ N, 32° 43′ 0″ E during the two consecutive spring-summer seasons of 2018 and 2019 respectively to study the effect of three different genotypes used as rootstocks on plant growth performance, fruit yield and quality of three watermelon F1 hybrids. Tongue approach grafting method was used, three hybrids of watermelon which growing on a large scale of the commercial production of watermelons in Egypt namely, Aswan F1, Misr1 F1 and Star F1 was grafted onto three different genotype rootstocks i.e. Cobalt F1, Ferro F1 and New Star F1. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Calculated data revealed that, there are clear significant differences between the grafted and non-grafted plants. Results of yield characteristics and its component, such as fruit weight, fruits length and circumferences and total fruit yield per feddan (ton) (feddan = 0.420 hectares = 1.037 acres), indicated to the superiority of the Misr 1 F1 hybrid which grafted onto Cobalt F1 rootstock, followed by the Aswan F1 when grafted onto Cobalt F1 rootstock. On the other side, Ferro F1 rootstock was poorly adapted with the all commercial hybrids of watermelon under studies.

This study was conducted on the eggplant (Solanum melongena L.) at a private nursery in, Akhmim city, Sohag, Egypt located at 26° 34′ 0″ N, 31° 45′ 0″ E. During the two successive winter seasons of 2019 and 2020, to evaluate the responses of the eggplant seeds' emergence, seedlings growth, that growing in modified growth media by using some organic wastes. 0.0, 5, 10 and 15 % of Moringa wastes were added to traditional media on a weight basis and 0.0, 15, 30 and 45 % of broccoli wastes also were added to traditional media on a weight basis. The experiment was laid out as a Completely Randomize Design with three replications. Results related to germination percentage %, mean germination time, total chlorophyll content, seedling height (cm), stem thickness (mm) and seedling fresh and dry weight g revealed that, positively significant effects of partially replacement of traditional growing media with organic alternatives i.e. moringa and broccoli wastes. Among different combinations of mixtures growing medium, traditional media (peatmoss/vermiculite 1:1) plus moringa wastes on a weight basis 85:15 (T4) respectively, or by adding broccoli wastes on a weight basis 70:30 (T3) respectively, were the best selection compared to the control treatment and the other combination mixtures.