摘要
为了对比分析平茬与未平茬油用牡丹的生长特性及物候期,以油用的‘凤丹’牡丹为试验材料,于2019年春季对其地上部器官生长指标及物候期进行了观测.结果表明:平茬虽能极显著降低‘凤丹’牡丹植株芽的体量,但对该芽抽生枝条长度以及该枝上着生花蕾的高度、直径没有显著影响;平茬使‘凤丹’牡丹的单枝叶片数和株高极显著减少的同时,也能使当年生枝数极显著增多,使东西冠幅显著增大,从而使平茬后的牡丹株形更紧凑;平茬的‘凤丹’牡丹植株,其萌发期、显叶期的持续天数均多于未平茬的,且进入萌发期、张叶期、展叶期、风铃期、透色期、开花期的时间会稍晚于未平茬的;此外,平茬与未平茬的‘凤丹’牡丹植株各物候期总的持续时间均为50 d,二者总的有效积温仅相差18.3℃.本结论可为当地油用牡丹生产者和研究人员提供参考.
In order to compare and analyze the growth characteristics and phenophase of oil peony pruned and unpruned,taken the plants of Paeonia ostii for oil as the experimental material,and several growth indexes of aboveground organs of P. ostii and the phenological period were observed in spring of 2019.The results showed that there were no significant effected on the length of branch from the bud and the height and diameter of the flower bud on the branch to prune the plant,although the size of the bud of P. ostii could be reduced significantly by pruned;The shape of P. ostii plant pruned can become more compact through the number of branches in the same year and the width of the east and west crowns of the plant increased significantly,while the plant height and the leaf number per branch of P. ostii reduced significantly;The duration days of germination stage and leaf-showing stage of P. ostii plant pruned was more than that of unpruned plant,and the 6 stages of bud sprouting,leaf unfolding,leaf extending,bell-like flower,color appearance and flowering of the P. ostii plant pruned was slightly later than those of the P. ostii plant unpruned.In addition,the total duration days of the phenological periods of both P. ostii plant pruned and unpruned were 50 days,and the total effective accumulated temperature was only 18.3 ℃ different for the two types.These conclusion can provide references for local oil peony producers and researchers.
作者
韩阳
周秀梅
陈超萍
李保印
HAN Yang;ZHOU Xiumei;CHEN Chaoping;LI Baoyin(School of Horticulture and Landscape Architecture,Henan Institute of Science and Technology,Xinxiang 453003,China)
出处
《河南科技学院学报（自然科学版）》
2019年第6期16-20,共5页
Journal of Henan Institute of Science and Technology(Natural Science Edition)
基金
河南省科技攻关项目（182102110054）
关键词
‘凤丹’牡丹
平茬
生长特性
物候期
Paeonia ostii T.Hong et J.X.Zhang
stumping
growth characteristics
phenophase
作者简介
韩阳(1994―),男,河南新乡人,硕士研究生.主要从事生态环境工程与城乡绿化研究;通信作者:李保印(1965―),男,河南兰考人,博士,教授.主要从事芳香植物资源与开发利用研究。
