%0 Journal Article %T 嫁接砧木对‘猩红’平滑山楂抗寒性的影响<br>Effect of Rootstocks on the Cold Resistance of Grafted Crataegus laevigata ‘Paul’s Scarlet’ %A 曹泽文 %A 徐瑾 %A 刘燕 %J 西北林学院学报 %D 2015 %R doi:10.3969/j.issn.1001-7461.2015.01.18 %X 为了筛选‘猩红’平滑山楂适宜的嫁接砧木,以山楂、辽宁山楂作为嫁接砧木,引种的‘猩红’平滑山楂/单子山楂嫁接植株为对照,对2年生‘猩红’平滑山楂嫁接苗进行了抗寒性研究。结果表明,2组合的嫁接苗抗寒性均强于引种的‘猩红’平滑山楂/单子山楂植株,山楂更适宜作为‘猩红’平滑山楂北京地区推广的砧木。越冬过程中,2组合嫁接苗秋梢受冻害程度较引种的成熟树明显降低,其当年生枝条均保持了较低相对电导率和丙二醛含量,可溶性糖积累明显,但脯氨酸积累不明显。相比之下,‘猩红’平滑山楂/山楂组合的抗寒性强于‘猩红’平滑山楂/辽宁山楂组合。<br>In order to screen suitable rootstock for Crataegus laevigata ’Paul’s Scarlet’, this paper studed the cold resistance of 2-year-old grafting seedlings of C. laevigata ’Paul’s Scarlet’, using C. pinnatifida and C. sanguinea as grafting rootstocks and taking the combination of C. laevigata ’Paul’s Scarlet’-C.monogyna as a control. The results showed that the cold resistance of both two grafting combinations was higher than the combination of C. laevigata ’Paul’s Scarlet’-C.monogyna. C. pinnatifida was more suitable to be the rootstock for grafting C. laevigata ’Paul’s Scarlet’ widely growing in Beijing. During the natural overwintering period, the chilling injury index of the grafted combinations significantly decreased compared with the introduction of mature trees. In addition, two types of 1-year-old branches all kept relatively low electrolytic leakage and malondialdehyde content and accumulated more soluble sugar. However, the accumulation of the poline was not obvious. The cold resistence of C.laevigata ’Paul’s Scarlet’-C.pinnatifida was better than that of C. laevigata ’Paul’s Scarlet’-C.sanguinea %K ‘猩红’平滑山楂 %K 嫁接苗 %K 抗寒性 %K 冻害指数 %K 生理指标< %K br> %K Crataegus laevigata ’Paul’s Scarlet’ %K grafted seedling %K cold resistance %K chilling injury index %K physiological index %U http://xblxb.paperopen.com/oa/darticle.aspx?type=view&id=201501018