Abstract:

In order to provide drought-resistance evidence of wheat breeding in Qinghai, seven wheat cultured varieties in Qinghai were researched on their coleoptile length and germination rate change in germination stage and several biochemical indices (proline, CAT, dissolubility candy) in seedling between control groups and treatment groups (PEG6000 0f 20%). The result indicated that coleoptile of these wheat varieties grew slowly under PEG6000 0f 20%, proline content and soluber sugar content rise, CAT activity rise in seedling. Drought-resistance of seven wheat varieties were ranged according to drought-resistance indexes: ‘Xiaohongmai’ and ‘Abo’ were the best, ‘Lemai5’, ‘Humai11’ and ‘Shanhan901’ were better, ‘Huzhuhong’ and ‘Humai15’ were the worst.