The experiment was carried out with garlic cultivars ,early cultivar ZhongMuZaoShuSuan(ZMZSS),mid-cultivar SongChengDaSuan(SCDS) and late cultivar CangShanSuan(CSS).This paper studied that the effect of low temperature treatment (1±2 ℃) on garlic physiologic, sprouting, plant growth, bolting and secondary growth. The results were achieved with assays in lab and in the field . (1) Proline(Pro) content of seed clove for ZMZSS treated for 26~102d was greater than that of control. Pro content of see...