楸树良种‘云朵楸’  

An Elite Variety of Catalpa bungei ‘Yunduo'

作　　者：麻文俊[1] 王军辉[1] 张守攻[1] 赵鲲 焦云德 

机构地区：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室,北京100091 [2]洛阳农林科学院,洛阳471023

出　　处：《林业科学》2014年第6期187-187,共1页Scientia Silvae Sinicae

基　　金："十二五"国家科技支撑计划(2012BAD01B05)

摘　　要：‘云朵楸’是通过自然选优育成的具有较高观赏价值的楸树观花良种，可通过嫁接和扦插等无性繁殖方式繁殖。造林后4年开花，6年后花量稳定；花朵为白色，较对照（大叶金丝楸）洁白，伞形花序，单花絮6～20朵花，较对照多10朵左右；花期一般为4月25日-5月10日，较对照晚5～7天，但开花持续期较对照长5天以上。该品种具有花色独特、花量大、抗性强等特点，适宜园林观花栽植。Catalpa bungei‘Yunduo’is a new flower variety with highly ornamental value,which is selected through natural choose and can be reproduced by grafting and cutting. This variety can be flowering 4 years after of forestation;flower number can get stabilization 6 years after afforestation. The flower is whiter and more pure than the control （ Catalpa bungei‘Dayejinsiqiu’） ,with umbel,single tidbits with 6 -20 flowers and is about 10 more than the control;Florescence is during April 25 to May 10,5 -7 days later than the control,but flowering duration is 5 days longer than the control. This variety with the characteristics of unique flower color,large flower number and strong resistance and so on,is pretty suitable for garden flower planting.

关 键 词：楸树 良种 选育 

分 类 号：S722.3[农业科学—林木遗传育种]