XU Xiao-yu,ZHANG Feng-yin,ZHANG Ling-ling.Effect of Penicillin on Seed Germination and the Seedling Growth of Zinnia elegans[J].Northern Horticulture,2015,39(05):86-88.[doi:10.11937/bfyy.201505027]
青霉素对百日草种子萌发及幼苗生长的影响
- Title:
- Effect of Penicillin on Seed Germination and the Seedling Growth of Zinnia elegans
- Keywords:
- penicillin; Zinnia elegans; seed germination; seedling growth
- 文献标志码:
- A
- 摘要:
- 以百日草种子为试材，分别采用浓度为0（CK）、100、200、300、400、500 mol/L的青霉素溶液对百日草种子进行浸种处理，种子萌发期间测定种子发芽指标（发芽势、发芽率、发芽指数、活力指数）和幼苗生长指标（芽长、根长、鲜重、侧根数），旨在研究青霉素对百日草种子萌发及幼苗生长的影响。结果表明：随着浓度的增加，百日草种子发芽指标及幼苗生长指标均先上升后下降。200、300 mol/L浓度的青霉素溶液均能显著提高百日草种子的发芽势、发芽率和活力指数；各处理均能使百日草幼苗根长和鲜重显著增加；青霉素浓度为300 mol/L时，除发芽指数外，其它各项发芽指标和幼苗生长指标均与对照呈极显著差异。表明一定浓度的青霉素溶液对百日草种子的萌发及幼苗生长有促进作用，以青霉素浓度为300 mol/L时效果最佳。
- Abstract:
- Taking seeds of Zinnia elegans as experimental materials，0(CK)，100 mol/L，200 mol/L，300 mol/L，400 mol/L and 500 mol/L concentrations of penicillin solution were respectively made as treatments to soak the seeds.Germination indexes (the germination energy，germination rate，germination index and vitality index) and the growth indexes (shoot length，root length，fresh weight and amount of lateral roots) of seedlings were measured during seed germination to find the effects of penicillin on seed germination and the seedling growth of Zinnia elegans.The results showed that，all of the indexes increased and then decreased with the increasing of penicillin solution.200 mol/L and 300 mol/L concentrations of penicillin solution could enhance the germination energy，germination rate and vitality index significantly.All of the treatments could significantly promote root length and fresh weight of seedlings.300 mol/L concentration of penicillin solution had very significant role in promoting all of the germination indexes and seedling growth indexes except the germination rate.This showed that certain concentration of penicillin solution had promotive effect on seed germination and the seedling growth of Zinnia elegans，and the most suitable concentration was 300 mol/L.
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备注/Memo
第一作者简介：徐小玉（1975-），女，硕士，讲师，现主要从事园林植物栽培与应用等研究工作。E-mail：xxiaoyever@sohu.com.基金项目：国家“十二五”科技支撑计划资助项目（2012BAD27B00-07）。