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Nectarine is easy to crack
The main cause of cracking of nectarines is the difference in tissue structure of fruit cells. Seen under the microscope, the ordinary peach fruit face has long, short, dense hair, can not see the pores, and nectarine fruit surface devoid of pores, the pore surface to the entire surface of the fruit has ripple-like cracks; ordinary peach epidermal cells are horizontally arranged There are many layers, arranged in a wall style, neat and tight, and the nectarine surface cells are mostly arranged vertically and loosely, with irregularities and cracks; the nectarine epidermis has a few layers and loosely arranged in the longitudinal direction. The structure is weak against external pressure, easily cracked, and the ordinary peach peel cells have many layers, closely arranged and tightly packed, resisting strong external pressure, and not easy to crack fruit; the nectarine peel is smooth and glabrous, and the direct sunlight can cause the fruit surface to be in adverse weather such as rainfall. The change of fruit surface temperature is larger than that of pulp cells. Especially when the fruit is near to maturity, the pulp cells expand rapidly and the skin cells expand slowly due to the limitation of the cuticle, resulting in different growth speeds between the skin and the pulp, resulting in a large number of fruit cracks. .