Do you know citrulline is benefit for body health and watermelon is rich in citrulline? Red Viagra is the first seedless watermelon variety with higher citrulline contents in China. The fruits are perfectly globe in shape, green rind and dark green narrow stripes, the fruit weight is more than 8.0 kg. It is an early-middle maturity, resistant to disease and humidity, bright-red flesh, sweet variety. The flesh has amounts of juice and the quality is best.