Ultrastructural Study on Generative Cell During Rounding out in Citrullus lanatus Isolation and expression analysis of resistance related genes in incompatible interaction between watermelon and Fusarium oxysporum f. sp. niveurn The development of endosperm haustorium and the ultracytochemic localization of ATPase activity in the haustorium of watermelon Histological and Cytological Research on Graft Union Formation of Grafted Watermelon Seedlings with Different Scion Ages Histological and Cytological Research on Graft Union Formation of Grafted Watermelon Seedlings with Different Scion Ages ffects of Supplemental Calcium on the Photosynthetic Characteristics and Fruit Quality of Watermelon Under Salt Stress ffects of Supplemental Calcium on the Photosynthetic Characteristics and Fruit Quality of Watermelon Under Salt Stress Genomic Homology between Citrullus lanatus and Its Close Relatives Revealed by Comparative Genomic in situ Hybridization Screening host factors that interact with Cucurbit aphid-borne yellows virus MP using yeast two-hybrid system Effects of Monosodium Glutamate Wastewater on Rhizosphere Soil Biological Characteristics of Watermelon (Citrullus lanatus)