Some plants need low temperature to flower and grow strong. The effect of low temperature induction to promote flowering and fruiting of plants is called vernalization. According to the above definitions, Which of the following do not use the vernalization principle:. ['Onion flowering affects its quality, so the bulbs stored overwintering at high temperature before planting in spring to reduce its ability to sense low temperature, so as to obtain larger bulbs.', 'Using gibberellin, biennial tianshen, cabbage, beet, and carrot can flower without low temperature treatment.', 'Put the germinated winter wheat seeds in cans, and place them in the low temperature of winter for 40 to 50 days, then plant them in spring to obtain the same harvest as in autumn.', 'Digging the roots of the biennial medicinal plant Angelica sinensis in the first year and store them under high temperature to reduce the rate of sprawl in the second year and obtain better roots.']