3种植物生长调节剂促进桑葚粤椹大10扦插生根的试验

为了探讨植物生长调节剂对桑葚粤椹大10扦插生根的作用，选用ABT1号生根粉、IBA、NAA ，分别配制成100mg/L、150mg/L、200mg/L 3种溶液，以清水为对照，浸泡木质化枝条4小时，重复区组设计，以河沙、河沙蛭石、黄心土为基质分别进行了3次扦插试验。结果表明，IBA 以200mg/L处理效果最好，平均生根数量6.68，根系平均长度8.65mm，根系平均直径0.62 mm， 平均成活率81.33 %；NAA 以100mg/L处理效果最好，平均生根数量 5.49 ，根系平均长度为7.11mm，根系平均直径0.59 mm，平均成活率65.38 %；ABT 1号以200mg/L处理效果最好，平均生根数量为2.1 ，根系平均长度 4.52mm，根系平均直径0.45 mm，平均成活率 44.96 %；3种植物生长调节剂之间比较，IBA处理效果优于NAA，NAA处理效果优于ABT1号生根粉。多因素影响下的扦插最优条件组合，有待今后进一步开展研究。

Effects of Three Plant Growth Regulators on Rooting of Mulberry Yueshenda 10 Cuttings

In order to study effects of plant regulators on rooting of mulberry Yueshenda 10 Cuttings, ABT1 rooting powder, IBA,NAA were prepared into 100 mg / L, 150 mg / L and 200 mg / L three solutions, take water as control, the lignified branches were soaked in the solutions for 4 hours. Repeated block design.3 rooting experiments were carried out taking river sand ,river sand+ vermiculite , yellow heart soil as matrix. The results showed that the best IBA treatment was 200 mg / L, The average root number was 6.68, the average root length was 8.65 mm, the average root diameter was 0.62 mm, and the average survival rate was 81.33%; The best NAA treatment was 100 mg / L, the average rooting number was 5.49, the average root length was 7.11 mm, the average root diameter was 0.59 mm, and the average survival rate was 65.38%; the best ABT1 treatment was 200 mg / L , the average rooting number was 2.1, the average root length was 4.52 mm, the average root diameter was 0.45 mm, and the average survival rate was 44.96%;Among the three plant growth regulators, IBA was better than NAA, NAA was better than ABT1. The optimal combination of cutting conditions under the influence of multiple factors needs to be further studied in the future.