Regulating Fruit Growth,Coloration and Nutrient Quality of Litchi chinensis with Exogenous L-Glu QTLs Mapping for Tomato Fruit Weight and Fruit Shape in Solanum lycopersicon × S. galapagense Recombinant Inbred Line QTLs Mapping for Tomato Fruit Weight and Fruit Shape in Solanum lycopersicon × S. galapagense Recombinant Inbred Line Effects of artificial pollination on fruit development of Pitaya (Hylocereus polyrhizus)