扬州大学学报（农业与生命科学版）2011，Vol.32Issue(2)：77-80,4.
休眠解除剂对梨属植物叶芽休眠的影响
Effects of dormancy releasers on bud dormancy breaking in pear species
摘要
Abstract
Birchleaf pear (P. Betulaefolia Bge), Bean pear (P. Calleryana Dcne) and sand pear (P. Pyri folia cv. Hosui) were used in this study to investigate the effects of Calcium Cyanamid (CaCN2 ), Cyanamid urea anhydride ( H2CN2) and Hydrogen peroxide ( H2 O2) treatments on dormancy breaking. The results showed that influences of dormancy removers on dormancy breaking of leaf buds in pear species were dependent on sampling time, medicament types and experimental materials. Leaf bud dormancy in P. Betulae folia and P. Pyri folia cv. Hosui could be broken by CaCN2 treatment, while, the leaf bud dormancy in P. Calleryana Dcne could be broken by H2O2 treatment. In Yangzhou region, leaf bud endodormancy was completed in early January in P. Pyrifolia cv. Hosui and its chilling requirement for breaking leaf bud dormancy was 1 044 U according to Uath model. Endodormancy of leaf bud of P. Calleryana Dcne was accomplished in middle of December and its chilling requirement was 936 U. Endodormancy of leaf bud of P. Betulae folia Bge was finished after early January and its chilling requirement was more than that of P. Calleryana Dcne and P. Pyrifolia cv. Hosui.关键词
梨/休眠/需冷量Key words
pear/dormancy/chilling requirement分类
农业科技引用本文复制引用
陆新敏,朱霞,赵辉,李璇,韦军..休眠解除剂对梨属植物叶芽休眠的影响[J].扬州大学学报（农业与生命科学版）,2011,32(2):77-80,4.基金项目
江苏省农业科技自主创新项目(CX(09)611) （CX(09）
扬州市-扬州大学科技合作项目(yz2008086) （yz2008086）
