摘要
在盆栽条件下,研究根施0、0.5、1.0、1.5、2.0、2.5、3.0mg/L多效唑水溶液对银荆籽苗苗高、地径、全重、地上重、地下重等生长因子的影响。结果表明:多效唑对籽苗苗高的增长具有抑制作用,其中根施2mg/L处理效果最好,苗高6.520cm,比对照降低了18.34%。多效唑有助于提高籽苗的地径,其中根施1.5mg/L处理效果最好,地径1.336mm,比对照提高了5.36%。全重之间呈显著差异,其中根施1、1.5mg/L处理效果最好,全重0.246mg,比对照提高了13.36%。地上重之间呈显著差异,其中根施1.5mg/L处理效果最好,地上重0.133g,比对照提高了22.02%。地下重之间呈显著差异,其中根施1.5mg/L处理效果最好,地下重0.127mg,比对照提高了69.33%。综合结果表明,真叶形成后根施1或1.5mg/L多效唑水溶液最有利于银荆籽苗生长。
The effects of 0,0.5,1.0,1.5,2.0,2.5,3.0 mg/L PP333on height,basal diameter,full weight,belowground weight and overground weight of Acacia dealbata Link were studied under inside-door pot culture.The results showed that,PP333suppressed the samples to increase its height,the concentration of 2 mg/L had the best effect on the plantlet height,the plantlet height was 6.520 cm,which was 18.34% lower than the controls.Various concentration PP333 treatments raised the basal diameter of plantlets,the concentration of 1.5 mg/L received significant impacts on the plantlet basal diameter（1.336 millimeters）,raised 5.36% in comparison with the controls.PP333 helped increase the full weight of plantlet,1 mg/L and 1.5 mg/L were the best effective concentration,the full weight of relative plantlets was 0.246 mg,which was 22.02% more than the controls.PP333 improved the belowground weight of plantlets significantly,the concentration of 1.5 mg/L gained the most obvious effects,which raised 69.33% in comparison with the belowground weight of the control.In conclusion,the best PP333 concentration,which was most conducive to plantlet growth of Acacia dealbata Link,were 1 mg/L and 1.5 mg/L.
出处
《北方园艺》
CAS
北大核心
2011年第17期93-95,共3页
Northern Horticulture
基金
荆州市科技局攻关资助项目(20101P020)
长江大学横向资助项目(09H2102)
关键词
多效唑
银荆
苗高
地径
鲜重
PP333
Acacia dealbata Link
plantlet height
basal diameter
fresh weight
