J Integr Plant Biol. ›› 1991, Vol. 33 ›› Issue (8): -.

• Research Articles •    

Effects of Flower-Nipping on Morphology and Yield and the Formation of Wound Periderm of Tse-Pear

Tao Shi-rong, Liu Qing-hua, Xu Fang and Li Zheng-li (Lee Chenglee)   

Abstract: Variations of the external form of Tse-pear (Pyrus bretschneideri cv. Tse-li) occurred after flowernipping. It became conical in shape in comparing with the natural rounded spindle-shaped pear without flower-nipping. The wound periderm formed rather rapidly on the floral tube after flower-nipping. Four days after flower-nipping, the initiation of phellogen became visible. Seven days later, the cell division of phellogen increased and the cork layer formed near the surface. After 15 days, the closed-layer on the surface and the hypertrophic cell layers mostly collapsed, cork cells increased and they subsequently formed the protective layer. The effects of flower-nipping on the yield of pear depended upon the degrees of treatment. In heavy treatment, the yield decreased about 15% from the harvest.

Key words: Tse-pear (Pyrus bretschneideri), Flower-nipping, Wound periderm

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