油莎豆块茎萌发特性研究

为解决油莎豆块茎在种植过程中萌发较慢的问题，以A2、中油莎1号和内蒙古大粒（ND）为材料，通过对3个油莎豆品种的浸种条件、消毒方式以及不同浓度植物生长调节剂组合的筛选，探究油莎豆块茎的最佳消毒方法及最优萌发条件。结果表明：在75%酒精3 min、氯气16 h时消毒效果最好；3个品种均在35℃浸泡3 d时萌发率最高，分别为58.33%、51.67%和43.33%;A2和中油莎1号均在MS+1.0 mg/L 6-BA+0.5 mg/L NAA的培养基上萌发率最高，分别为70.00%和63.33%；内蒙古大粒在MS+0.5 mg/L 6-BA+0.2 mg/L NAA的培养基上萌发率最高，为55.00%。6-BA对块茎的萌发有显著作用，但随着浓度升高对块茎的萌发由促进转为抑制作用。

Germination characteristics of tiger nut （Cyperus esculentus L.）

To better understand how to improve the germination of tiger nut tubers during planting, disinfection method and optimal germination conditions of tiger nut tubers were optimaized by screening soaking conditions, disinfection methods and combinations of different concentrations of plant growth regulators using 3 tiger nut varieties A2, Z1 （Zhongyousha 1） and ND （Neimenggu Dali）. Results showed that the best disinfection effect was achieved at 75% alcohol for 3 min and chlorine for 16 h, and their germination rates all reached the highest at 35°C for 3 days, as 58.33%, 51.67% and 43.33% respectively. The highest germination rate was obtained under MS+1.0 mg/L 6-BA+0.5 mg/L NAA for both A2 （70.00%） and Z1 （63.33%）. While for ND, 55.00% was the highest germination rate under MS+0.5 mg/L 6-BA+0.2 mg/L NAA. Although 6-BA had significant effect on tuber germination, but increased concentration might inhibit the germination.