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用PEG处理蕃茄种子观察其田间和盆栽情况下在高盐和板结状态土壤中对出苗的影响,用1.2Mpa的PEG(4000)溶液在空气中将蕃茄种子处理8天,温度为16℃,然后将种子播于装满沙壤土的盒子中(盐含量为0～8gNaCl或MgSO_4/千克土壤)。通过灌溉和25%的正磷酸处理的方法来改变土壤的板结程度。在本试验中,PEG处理使蕃茄出苗率及产量增加,可使蕃茄的平均出苗时间缩短33%左右,通过它可增进种子耐盐性和种子活力。
Tomato seeds were treated with PEG to observe their effects on emergence in high-salt and plate-knot soil under field and pot conditions. The tomato seeds were treated with 1.2 Mpa of PEG (4000) solution in air for 8 days at a temperature of 16 ° C and then Seeds were sown in boxes filled with sandy loam (salt content 0-8 g NaCl or MgSO4 / kg soil). The degree of soil compaction was changed by irrigation and 25% orthophosphoric acid treatment. In this experiment, the treatment of PEG increased the germination rate and yield of tomatoes, and the average emergence time of tomatoes could be shortened by about 33%. Salt tolerance and seed vigor could be improved through it.