Petals obovate, with claws at the base, equal to stamens; Disk thick, fleshy, round, 5-lobed; The lower part of the ovary is hidden in the disk, which is connate with the disk, with 2 cells, each cell 1 ovule, and the style is 2-lobed.
Drupe is oblong or rectangular, with a length of 2-3.5 cm and a diameter of 1.5-2 cm. It is red at maturity and then reddish purple. The mesocarp is fleshy, thick, sweet, sharp at the top of the pit, sharp or obtuse at the base, 2-loculed, with 1 or 2 seeds, and the fruit stalk is 2-5 mm long. The seed is oblate, about 65438 0 cm long.
Extended data:
Growth habit
Jujube trees grow in mountainous areas, hills or plains below 1700 meters above sea level, and belong to warm fruit trees. The annual average temperature in the producing area is about 65,438+05℃, and it needs 65,438+03-65,438+05℃ in the germination stage, 65,438+07℃ in the branching stage and 22-25℃ in the flowering and fruit setting stage.
The temperature of fruit ripening should be 18-22℃. Jujube trees are drought-tolerant and waterlogged-tolerant, but high air humidity is needed at flowering stage, otherwise it is not conducive to pollination and fruit setting.
In addition, jujube enjoys strong photophobia, is sensitive to light reaction, has strong adaptability to soil, and is barren and salt-tolerant. But we are afraid of the wind, so we should pay attention to avoid the tuyere in the process of building the garden.