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1996~1997年采取田间小区试验和室内模拟试验相结合的方法,对3个小麦品种的抗旱形态生理特性进行了研究。结果表明,在水分胁迫条件下.郑旱1号胚芽鞘长、主胚根长、根系活力、叶片脯氨酸含量、细胞膜造性、旗叶SOD活性、O2产生速率、MDA含量、成稳数、稳粒数、千粒重和产量的增减幅度最小,抗旱性最好,豫麦2号次之,豫麦41号的增减幅度最大.抗旱性最差。在众多抗旱形态生理指标中,用胚芽鞘长和主胶很长进行品种抗旱性鉴定和筛选具有较高的应用价值。
From 1996 to 1997, field drought resistance and physiological characteristics of three wheat cultivars were studied by combining field plot test with indoor simulation test. The results show that under water stress conditions. Zhenghan No.1 germplasm sheath length, main radicle length, root activity, leaf proline content, cell membrane structure, flag leaf SOD activity, O2 production rate, MDA content, stable number, stable grain number, 1000-grain weight and yield The smallest increase and decrease, the best drought resistance, followed by Yumai 2, Yumai 41, the largest increase and decrease. Drought is the worst. In many morphological indicators of drought resistance, it is of high value to identify and screen varieties for drought resistance by using long coleoptile and long main glue.