【摘要】 为丰富黑龙江省森林植物园的牡丹品种,2004年从甘肃省兰州市引种了紫斑牡丹,连续3 a对其物候、生长节律及花芽分化等进行了观测。结果表明:物候期延迟了大约30 d,枝条和叶片年平均生长量分别为26.3cm和27.8 cm(长)×20.4 cm(宽),花蕾平均大小为3.39 cm(纵径)×3.10 cm(横径),花径平均大小为13.5 cm,花芽分化正常。在引种地紫斑牡丹能够良好地生长并开花结实,具有较高的观赏价值和广阔的发展前景。更多还原

【Abstract】 Paeonia rockii was introduced from Lanzhou City,Gansu Province to Harbin in 2004 aiming to enrich the varieties of peony in Heilongjiang Forest Botanical Garden.Phenological time,growth rhythm and flower bud differentiation of P.rockii were studied.Results showed that the phenological time was postponed for about 30 days.Some growth indexes were obtained as the average annual increments of branch and leaf 26.3cm and 27.8cm(length)×20.4cm(width) respectively,the average size of flower bud 3.39cm(length)×3.10cm(width),and the average diameter of flower 13.5cm.Flower bud normally differentiated.P.rockii could grow,blossom and bear fruit normally.P.rockii should be popularized widely in Harbin due to its high ornamental value.更多还原