碳酸钠与6-BA复合处理对竹叶花椒种子萌发影响OACSTPCD

The Zanthoxylum armatum DC.,an important economic crop,has very low germination rates for its seeds under natural conditions.Researching technical measures to improve the germination of Zanthoxylum armatum DC.seeds will provide a crucial basis for its promotion and application.This experiment used Zan-thoxylum armatum DC.seeds from Zigong City,Sichuan Province,as the experimental material.Sodium car-bonate degreasing was applied at a concentration of 2.5%with soaking time gradients of 6 h,12 h,24 h,and 48 h;the gradients for 6-benzylaminopurine(6-BA)plant hormone concentration were 200,400,600,and 800 mg/L,along with soaking time gradients of 12 h,24 h,36 h,and 48 h.Through orthogonal experimental design,treatments were applied,and the effects of different treatments on nine germination indicators of Zan-thoxylum armatum DC.seeds,including germination rate,germination vigor,germination index,vigor index,latency to germination,duration of germination,dry weight of shoots,dry weight of roots,and substance trans-formation rate,were measured and calculated.The results showed that among the 16 treatment groups,the 8 th group treatment(soaking in 2.5%sodium carbonate for 12 h,and 600 mg/L 6-BA for 36 h)exhibited the best overall performance.It significantly enhanced the germination rate,germination vigor,germination index,vigor index,and substance transformation rate of Zanthoxylum armatum DC.seeds by 4 times,5.6 times,8 times,4.2 times,and 1.1 times,respectively,compared to the control group.The latency to germination,dry weight of shoots,and dry weight of roots were increased by 1.58 times,1.45 times,and 1.33 times,re-spectively,compared to the control.Considering all factors,it was concluded that a 12-hours treatment with 2.5%sodium carbonate degreasing,followed by a 36-hours soak in 600 mg/L 6-BA,is most conducive to the germination of Zanthoxylum armatum DC.seeds.