黄菖蒲适生环境筛选

对黄菖蒲（Iris pseudacorus L．）在旱生（CK）、湿生及水深10、30、60、100和150cm 7个不同栽培环境下的株高、叶干重、通气组织及部分生理指标的变化进行了比较分析。发现从旱生至30cm水深环境中，黄菖蒲的株高和叶干重均逐渐增加，而在水深60cm至150cm的环境中则呈降低趋势。在水深30cm的环境中处理40d，黄菖蒲叶片通气道与横截面积比及叶片SOD活性显著高于对照和其他处理组；相对电导率及脯氨酸含量随水深及处理时间的增加基本呈上升趋势。结果表明，黄菖蒲在水深约30cm的环境中生长状况最佳；在旱生、湿生和水深10cm的环境中能够生长良好；在60cm水深环境生长比较适宜；水深超过60cm，黄菖蒲不能正常生长。

Selection of adaptable environment for Iris pseudacorus growth

The individual height,dry weight of leaf,aerenchyma and physiological characters of Iris pseudacorus L.which grew in seven different environments including draught(CK),wet and 10,30,60,100 and 150 cm water depth were researched.The results showed that individual height and dry weight of leaf of I.pseudacorus increased gradually in draught,10-30 cm water depth conditions,but decreased in 30-150 cm water depth conditions.The ratio of parichnos area to transverse area of leaf and SOD activity of I.pseudacorus leaf in 30 cm water depth were significantly higher than that in the control and other treatments.Relative electrical conductivity and proline content enhanced as water depth and treaument time increased.It is concluded that I.pseudacorus grew best in environment of 30 cm water depth,better in environment of draught,wet and 10 cm water depth,but could not grow in 100 cm and 150 cm water depth conditions as normal.