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Effects of Exogenous Polyamines and Their Inhibitor MGBG on the Apple Pollen Germination and Fruit Set

Xu Jizhong; Chen Haijiang; Shao Jianzhu; Wang Yanhui (Department of Horticulture, Hebei Agricultural University, Baoding 071001; School of Agronomy, Hebei Agricultural University, Baoding 071001)  
Effects of exogenous polyamines and their inhibitor MGBG on the pollen germination were studied with apple cv. Golden Delicious, Golden Spur and Orin. The results showed that polyamines at low concentrations could enhance apple pollen germination, while high concentrations had an opposite effect. MGBG at concentration of 1×10-3-1×10-4 mol·L-1 inhibited pollen germination, application of Put at concentration of 1×10-6 mol·L-1 could reverie the inhibition of MGBG. Spraying Put, Spd at the concentration of 1×10-3-1×10-6 mol·L-1 and Spin 1×10-5-1×10-6 mol·L- on the full bloom increased fruit set of Red Fuji apple.
【Fund】: 河北省自然基金!395212
【CateGory Index】: S661.1
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