EDTA-Fe对假俭草抗寒性和绿期的影响  

Effect of EDTA-Fe on chilling resistance and green period of centipedegrass(Eremochloa ophiuroides)

作　　者：陈光宙[1] 袁学军[1] 李艳丽[1] 

机构地区：[1]琼州学院生命科学学院,海南三亚572000

出　　处：《草业科学》2011年第1期113-116,共4页Pratacultural Science

摘　　要：为了提高暖地型草坪草假俭草(Eremochloa ophiuroides)的抗寒性,延长其青绿期,设置了4个不同乙二胺四乙酸铁-钠(EDTA-Fe)剂量(1、5、10和15 mL/L),对盆栽假俭草进行处理。结果显示,在低温条件下,与空白对照相比,不同处理假俭草叶片的叶绿素、可溶性糖和脯氨酸含量均有不同程度地提高,而其相对电导率均有不同程度地下降;不同剂量EDTA-Fe处理,提高假俭草抗寒效果不同,其中,以10 mL/L EDTA-Fe处理效果最好,可延长假俭草青绿期达15 d。A pot experiment was conducted to determine the effect of different concentration EDTA-Fe （0, 1, 5, 10 and 15 mL/L） on chilling resistance and green period of centipedegrass strain E-126 （Eremochloa ophiuroides）. This study indicated that EDTA-Fe treatment reduced the electrical conductivity, increased the chlorophyll contents and restrained the chlorophyll decomposition, increased soluble sugar and proline content of centipedegrass under low temperature condition, implying that EDTA-Fe treatment improved chilling resistance. The concentration of EDTA-Fe with 10 mL/L was optimal and prolonging green period of centipedegrass for 15 days.

关 键 词：假俭草 EDTA—Fe 青绿期 抗寒性 

分 类 号：S688.4[农业科学—观赏园艺]