Propagatioan method for soft cuttings of Liriodendron

作   者：Bin Li, Furong Lin， Chang Lu， Qifei Cai, Yongqi Zheng*（通讯作者）, Ru Liu.
期刊名称：Bangladesh J. Bot.
影响因子：0.214
卷 期 号：47（3）
页     码：769-778
关键词：Survival rate, Rooting time, Callus, ABT, Rooting rate
论文摘要：
Genus Liriodendron (Magnoliaceae) comprises only two species, namely Liriodendron tulipifera L. and
Liriodendron chinense (Hemsl.) Sarg. Stem cutting propagation experiment of the two species was carried out
to speed up the asexual reproduction of Liriodendron. The best factor combinations for highest rooting rate
were found out through orthogonal test. In the analysis of four factors including species, cuttings types, cutting
medium and hormone concentration, the highest rooting rate came from the combination of L. tulipifera , stem
cuttings with apical bud , peat soil and perlite (3 : 1) and ABT 380 ppm. In the analysis of three factors
including seedling age, cutting medium and hormone concentration, the highest rooting rate came from the
combination of cuttings from three years old Liriodendron, peat soil and perlite (3 : 1), and ABT 500 ppm.
The key technique of cutting propagation of Liriodendron was created, which improved rooting rate of
Liriodendron in the field planting significantly and reached a maximum to 60.9%. The propagation coefficient
of two years old L. tulipifera cuttings was 5.05. Roots grew out of cuttings in the fourth week after planting,
and the number of roots increased quickly during the fourth and fifth week. In the transplanting experiment,
the survival rate of Liriodendron cuttings with roots reached up to 94.3%, and cuttings with callus had the
survival rate of 45.9%. Lateral branches obtained from cuttings which had grown roots were transplanted and
had the rooting rate of 88.6%, and the rate of cuttings with callus was 11.4%.