石灰氮对砀山酥梨花芽萌发的效应初探

Effect of limenitrogen on flower bud germination of 'Dangshan'pear

花芽萌发前对砀山酥梨喷施不同浓度的石灰氮 ,观察其对打破休眠、促进花芽萌发的效应。结果表明 ,喷施 1 6.67%的石灰氮可使砀山酥梨提前 9天开花 ,平均每花序有花 4.9朵 ,花芽萌发率 5 7.0 %。喷施8.3 3 %的石灰氮 ,使花芽萌发率达 66.5 % ,在供试浓度中效果最好。

Trials on spraying limenitrogen at different concentrations over Dangshan pear trees before germination of flower buds revealed that 16.67% limenitrogen could force Dangshan pear to blossom earlier for 9 days, and had 4.9 flowers per inflorescence and 57.0% of flower bud germination rate, but giving limenitrogen at 8.33% got the best result, forcing 66.5% flower bud germinated. The mechanization why limenitrogen could break rest of the pear tree was not clear.