薄荷精油对‘云薯304’原原种抑芽效果研究

Study on the Effect of Mint Essential Oil on the Germination of ‘Yunshu 304’ Breeder's Seed

发芽是造成马铃薯贮藏损失的主要原因之一。通过设置80、100、120μL/L等3个浓度梯度的薄荷精油,以0μL/L(CK2)和2%氯苯胺灵(CK1)作为对照,研究了薄荷精油对‘云薯304’原原种贮藏中发芽的影响。结果表明:与未添加薄荷精油(CK2)相比,添加薄荷精油使‘云薯304’原原种的发芽率和芽长显著降低,且薄荷精油浓度越高,发芽率和芽长值越低,说明薄荷精油对‘云薯304’原原种的抑芽效果还与薄荷精油浓度相关,浓度越大,抑芽效果越明显;高浓度(120μL/L)薄荷精油处理和2%CIPC(CK1)处理能够使‘云薯304’原原种在贮藏中保持较高的水分含量和较低的质量损失率,说明高浓度薄荷精油可以使‘云薯304’保持较好的外观品质。

One of the main losses during potato storage is caused by germination. Three mint essential oil concentrations（ 80,100,120 μL/L） were used to treat the breeder’s seed of‘Yunshu 304’,2% CIPC（ CK1） and 0 μL/L（ CK2） were used as controls,to study the effect of mint essential oil on the germination of ‘Yunshu 304’breeder’s seed after storage. The main results were showed as follows： mint essential oil decreased the germination rate and bud length of‘Yunshu304’significantly,compared with 0 μL/L（ CK2）. The higher the concentration of mint essential oil,the lower of germination rate and bud length,the effect associated with mint essential oil concentration. It could keep higher water content and lower mass loss rate of ‘Yunshu304’by applying mint essential oil and 2% CIPC（ CK1）. The conclusion was that mint essential oil treatment could keep good physical quality of ‘Yunshu 304’.