闽楠大田播种育苗及富根壮苗培育技术研究

Studies on Field Sowing Practice and the Cultivation Technology of Strong Root and Seedling of Phoebe bournei

为探讨闽楠大田播种育苗及富根壮苗培育的技术问题,以闽楠大田播种苗为试验材料,采用切根和使用生根壮苗剂2种处理方法对苗木的苗高生长、地径生长和侧根数等指标进行比较研究。结果表明:切根苗苗木高、地径、长度大于3 cm侧根数、侧根长度等指标明显优于未切根苗。生根壮苗剂不同浓度对苗木进行喷施处理后,其苗木根长大于3 cm根数及平均根长、苗高生长、地径生长有显著差异。采用生根壮苗剂1000倍液处理,可使苗木侧根数量比对照增加50%以上、侧根长度比对照增长20%以上、苗木高生长比对照增加30%以上、苗木地径生长比对照增加20%以上。

In order to research technical issues of field sowing practice and the cultivation technology of strong root and seedling of Phoebe bournei, field sowing seedlings of Phoebe bournei were studied. Technologies of root-cutting and rooting and propagation agents were used to study and compare these targets on seedling height, ground diameter and the number of lateral roots of Phoebe bournei. The results showed that： the seedling h length of eight, ground diameter, the number of lateral roots whose root-cutting seedlings were clearly better than intact length were greater than 3 cm, lateral root roots. Different concentration rooting and propagation agents were set to spray foliage of seedlings. There was an extremely significant difference in average root length, seedling height, ground 3 cm under various treatments. The optimum diameter and the number of roots whose length were greater than concentration agents were 1000 times diluents, which could make the number of lateral roots increase by more than 50%, lateral root length increase by more than 20%, seedling height increase by more than 30%, ground diameter increase by more than 20%, compared with CK.