1、 Basic introduction

Watermelon is an annual vine. China is the largest watermelon producing area in the world. It has high nutritional composition, juicy pulp and sweet taste. The seeds can be used as pastime food, and the peel can also be eaten cold. It has high edible value and economic value. After eating, it has many effects and functions, such as diuresis, detumescence, beauty and beauty. There are many varieties of watermelon, such as red tiger, huami Guanlong, little angel, Chunlei, Jingxiu and so on. The flowering and fruiting period is in summer.

2、 Shape features

The shape of watermelon is mostly large, close to spherical or oval, smooth on both sides, blunt and round at the base, and usually slightly arched at the edge. The pulp is juicy and tender. The peel is smooth, mostly green and black, and the outer skin will have wavy patterns, but its color and decoration will vary according to different varieties. The number of seeds is large, oval, and the color is mostly black or white, as well as white, yellow, light green, etc.

3、 Growth habit

It likes a warm and dry climate and is not resistant to cold and humidity. It needs a large temperature difference between day and night in the process of its growth and development. The most suitable growth temperature of watermelon is between 24-30 degrees, and the temperature of developed root growth is about 30-32 degrees. It likes light and needs sufficient light in the process of growth. The planting soil should be sandy soil with loose soil, deep soil layer and good drainage, and the weak acid soil with pH value between 5-7 is the best.

4、 Picture appreciation