2. Strawberry cymes, short-stalked leaflets under the inflorescences; Flower bisexual; Sepals ovate, slightly longer than accessory sepals; Petals are white, suborbicular or obovoid. Aggregate fruit is large, with persistent sepals standing upright and attached to the fruit; Achene apex ovoid, smooth. The flowering period is April-May and the fruiting period is June-July.
3. Strawberries are native to South America and are widely planted in China and Europe. Strawberry has high nutritional value, contains a variety of nutrients and has health care function.
Strawberries like warm and cool climate. The growth temperature of strawberry roots is 5-30℃, the optimum temperature is 15-22℃, the optimum temperature for stem and leaf growth is 20-30℃, the bud is frozen at-10℃, and the temperature during flower bud differentiation must be kept at 5-15. Strawberry in summer, when the temperature is higher than 30℃ and the sunshine is strong, shading measures should be taken.
5. Strawberry is known as the "fruit queen" because of its rich nutritional value, which is rich in vitamin C, vitamin A, vitamin E, vitamin PP, vitamin B 1, vitamin B2, carotene, tannic acid, aspartic acid, copper, strawberry amine, pectin, cellulose, folic acid, iron, calcium, ellagic acid and anthocyanin.
Extended data:
Don't eat more strawberries in spring;
Strawberry has the functions of removing fire, relieving summer heat and clearing heat. In spring, people's liver fire is often strong, and eating strawberries can play an inhibitory role. However, strawberries should not be eaten more, because there are hollow, irregular and oversized strawberries in the middle. Except for a few new varieties with high yield, they are generally caused by excessive use of hormones.
After using ripening agent or other hormone drugs, the growth cycle of strawberry is shortened and the color is bright, but the inherent fragrance of strawberry is diluted and the flavor is lacking.
Moreover, eating too many strawberries can easily cause gastrointestinal discomfort and diarrhea. In spring, the overall immunity of the human body decreases, and things that are too cold stimulate the stomach and are harmful to the human body.
In addition, strawberries are best eaten after meals, because they contain a lot of pectin and cellulose, which can promote gastrointestinal peristalsis, help digestion, improve constipation and prevent hemorrhoids and intestinal cancer.
Baidu encyclopedia-strawberry
People's Network-Why can't we eat more strawberries in spring?