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以“雨花金星”、“雨花金华”、“雨花金桂”、“雨花落英”4种地被菊为试材,研究干旱处理对4种地被菊生长的影响,通过观测形态指标和叶片超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和抗坏血酸过氧化物酶(APX)的活性以及膜质过氧化产物丙二醛(MDA)含量、叶绿素含量、可溶性蛋白质含量,初步评价、比较了其抗旱能力。结果表明:抗旱性依次为“雨花金桂”>“雨花金华”>“雨花金星”>“雨花落英”;抗旱性较强的“雨花金桂”表现最好,叶片的超氧化物歧化酶(SOD)活性、过氧化氢酶(CAT)活性和抗坏血酸过氧化物酶(APX)活性较高;且叶绿素含量、可溶性蛋白质含量都比其余的含量高;“雨花金桂”膜质过氧化产物丙二醛(MDA)含量明显较低。
Four kinds of dahurian as test materials, such as “Yuhua Venus”, “Yuhua Jinhua”, “Yuhua Jingui”, “Yuhualaoying”, were used to study the effects of drought treatment on four kinds of ground cover Through observing the morphological indexes and the activity of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) and the malondialdehyde (MDA) Content, chlorophyll content, soluble protein content, preliminary evaluation, compared its drought resistance. The results showed that the order of drought resistance was “Yuhua Jinui”> “Yuhua Jinhua”> “Yuhua Venus”> “Yuhua Falls”; drought resistance “Yuhuajin Gui ”had the best performance. The activities of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) of leaves were higher than those of the other two cultivars. The contents of chlorophyll and soluble protein were higher The content of malondialdehyde (MDA) in membrance peroxidation products was significantly lower.