楸树良种‘宛楸8401’

An Elite Variety of Catalpa bungei ‘Wanqiu 8401’

‘宛楸8401’是由自然选优育成的楸树良种,通过嫁接和扦插等无性繁殖方式繁殖。5年生时树高和胸径平均为7.41和7.34cm,较对照‘大叶金丝楸’高23.5%和15.6%;15年生时胸径和单株材积平均达26.9cm和0.43m3,而材质与对照无明显差异。该品种具有速生、材质优良、抗性强等特点。

Catalpa bungei ‘Wanqiu 8401’ is an variety selected from natural populations of C. bungei which is progatated by grafting and cutting methods. Average height and diameter at breast height （DBH） of 5-years- old ‘Wanqiu 8401’was 7.41 m and 7.34 cm, which was improved by 23.5% and 15.6% compared with the control（C. bungei ‘Dayejinsiqiu’）; Average DBH and individual volume of old trees was 26.9 cm and 0.43 m3. Moreover, quality of timber had no significant difference between C. bungei ‘Wanqiu 8401’ and ‘Dayejinsi’. This elite variety has the characteristics including fast-growing, excellent timber quality and strong resistance.