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试管模拟盐碱土对30个马铃薯品系材料进行了耐盐碱筛选。结果表明，当培养基中总盐含量达到0．1％时，耐盐碱能力最差的品系就开始死亡，如144－4、3－2、65等品系，而耐盐碱能力强的品系，即使总盐含量达到0．4％，植株仍能存活，如品系I、131、31等。耐盐碱能力强的品系，其培养基的pH值在培养过程中都逐渐下降，到取样时均达到了适宜植株生长的范围。这说明，耐盐碱的植株能够向土壤中分泌大量H＋。
Saline-alkaline soil was selected to test the salt tolerance of 30 potato lines. The results showed that when the total salt content in the medium reached 0.1%, the lines with the lowest salt-tolerance ability began to die, such as 144-4,3-2,65 and other lines, while those with high salt-tolerance ability , Even if the total salt content reaches 0.4%, the plant can still survive, such as strain I, 131, 31 and so on. Saline-resistant strains, the pH value of the medium in the culture process are gradually decreased, to the sampling reached the appropriate range of plant growth. This shows that salt-tolerant plants can secrete large amounts of H + into the soil.