几种药剂处理对辣木出苗率的影响

目的]为辣木生产提供参考。方法]以印度传统种辣木、非洲辣木和印度改良种PKMI为供试辣木品种，筛选几种药剂处理辣木种子，观察其对辣木种子出苗率的影响。结果]在3个辣木品种中，PKMI的平均出苗率最高，印度传统种次之，非洲种最低；筛选的几种药剂处理的辣木种子出苗率较清水处理的均有不同程度的提高，尤其是浓度1％促根壮苗剂浸种4h和磷酸二氢钾5g加水500ml浸种4h对提高辣木种子出苗率有明显的效果；浓度1％促根壮苗剂，浓度1％的多菌灵单独使用比混合使用的效果好；第七元素和以色列活性促根剂单独使用比混合使用的效果好，混合使用会降低2种药剂的效果。九二0处理出的苗大部分是白化苗，九二0不宜用于辣木种子育苗。结论]为提高辣木种子的发芽率，节约用种成本提供了科学依据。

Impact of Several Chemical Treatments on the Mergence of Horse Radish Tree

Objective] The reference for the horse radish tree production was provided.Method] The Indian traditional horse radish tree species,African horse radish tree species and India improved horse radish tree species——PKM1 being taken as experimental material,the impact of several chemical treatments on the emergence rate of the horse radish tree species was observed after their seeds were treated with different chemicals.Results] Among 3 species,the PKM1 had the highest average germination rate;followed by traditional India species and the African species was the lowest one in germination rate.Several chemical treatments could produce better effect on germination rate of horse radish tree than the water and the significant efficiency was come from the treatment of the concentration of 1% Root-strong Agent for 4 hours' seed-soaking or 5 g potassium dihydrogen phosphate added with 500 ml water for 4 hours' seed-soaking.The better efficiency of single application of the root-strong agent with concentration of 1% or the Duojunling with the concentration of 1% on the germination rate of horse radish tree than mixed-use of chemicals;and also,the mixed-use of Seventh Element and Israel Root Activity Agent was not better than the alone application in the promotion of the germination rate of horse radish tree because of the reduction of chemical efficiency.The treatment of 920 resulted in too many albino seedlings and thus 920 should not be used for seed treatment.Conclusion] The scientific basis of the improvement of germination rate of horse radish tree and the cost-saving of seeds were provided.