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毛白杨优株(MB_1)是省林研所从全国范围内选择的毛白杨(雌株)优良无性系单株之一。树体高大挺拔、树冠茂密。适应性强,生长比普通毛白杨快15—20％,且材质优良,经济价值高。但毛白杨种条在用做常规无性繁殖时,如扦插,压条等,则生根困难,加之繁殖材料数量的限制,很难在短期内繁殖大批量的苗木。为了给林业生产提供更多的苗木,满足大面积推广优株,自1986年起,我们利用植物组织培养方法进行毛白杨优株(MB_1)快速繁殖。到现在为止,生产了毛白杨试管苗二万多瓶,并有近万株试管苗移入大田中,当年最高的长到3米,最大基径达3厘米。
Populus tomentosa superior strain (MB_1) is a province Lin Institute selected from a nationwide Populus tomentosa (female) fine clonal plant one. Tree tall, dense canopy. Adaptability, growth faster than ordinary Populus 15-20%, and good material, high economic value. However, Populus tomentosa seed used in conventional cloning, such as cutting, pressing, etc., the rooting difficulties, coupled with the limited number of propagation materials, it is difficult to breed large quantities of seedlings in the short term. In order to provide more seedlings for forestry production and to meet the needs of large-scale promotion of superior plants, we have used plant tissue culture methods to rapidly propagate Populus tomentosa MB11 since 1986. Until now, more than 20,000 bottles of Populus tomentosa plantlets have been produced and nearly 10,000 plantlets have been transferred to the field. In those days, the highest ones grew to 3 meters and the largest base diameter reached 3 cm.