逆境条件下新型植物生长调节剂GSA对草坪草的调控效应

Regulation of the New Plant Growth Regulators,GSA,on Turfgass under Stress

采用室内盆钵等量土、定量播种栽培法,以高羊茅为试验材料,定期水肥管理,待高羊茅出苗15 d后叶面等量喷施适宜浓度植物生长调节剂GSA为处理,叶面喷水为对照,研究了高羊茅在干旱、水淹、盐碱和低温条件下植物生长调节剂的形态学调控效应。结果表明:新型植物生长调节剂GSA使草坪草高羊茅增强了逆境适应能力,形态学指标较对照均表现优异,且差异显著(P<0.05),GSA对逆境胁迫起到了很好的干预效果,适宜浓度的新型植物生长调节剂GSA值得推广应用。

Festuca arundinacea was used as experimental materials through pot experiment and water and fertilize regularly.GSA was sprayed after Festuca arundinacea seedling emergence in order to study the morphological regulation of GSA on Festuca arundinacea under various adverse conditions,including drought,flooding,alkaline,saline,and cold.The results showed that GSA improved Festuca arundinacea＇s adapt ability,and morphology indexes were remarkably（P0.05）superior to control group.GSA protected plants under various adverse conditions,and was worth of spreading.