梨树果实在生长期间常常发生开裂而腐烂,优质果率降低,经济效益下降。裂果原因,有生理性的和病理性的。生理性是因为高温干旱后遇雨或灌水,使果皮和果肉生长不平衡,而开裂。其特点是整枝整株或成片树上果实开裂。 病理性的是因为果实侵染后病部 Pear tree fruit cracking often occur during the growth and decay, low-quality fruit, economic decline. Cracking the reason, there are physiological and pathological. Physiological is due to rain or irrigation after high temperature and drought, peel and pulp growth imbalance, and cracking. It is characterized by pruning whole or into a piece of tree fruit cracking. Pathological is due to infection of the diseased part of the fruit