PEG6000模拟干旱对月季‘闹柯斯特’生理特性的影响

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中图分类号：S685.12 文献标识码：A 文章编号：1006-060X（2026）01-0092-05

Abstract：ThissudyexploredthephyologicalesponsemechanismsoftheChinarosevriety‘Naokeste'，mingtoprovideabsis for drought tolerance evaluation.Different concentrations（ 0% 5% 10% 15% 5 20% 25% ，and 30% ）ofPEG 6000wereused to treat the cutting seedlings of‘Naokeste’to simulate drought stress for 6，12，24，and 36h .The relative water content， proline （Pro） content， malondialdehdeotent，oohlltent，uperoxidesmutase（OD）actiitydelativeeletricalodciity of theleavesweredetermined.Theresultsweresummarizedasfollows： （l）Therelativewatercontentandchlorophyllcontentinthe leavesdecreasediththreaseinococeratiooovetie.（2）Underthestrsitesityerootetelative EC，and MDA content in the leaves showed an upward trend over time，reaching peaks after treatment with 30% PEG 6000 for 36h （3）TheSODactivitysowedatrendoffirsticreasingandtendecreasingwiththeincreaseinEGoconcentratioachgthe peak at the concentration of 15% .Under the same stress intensity，the SODactivity enhanced over time.In conclusion， the China rose variety‘Naokeste’espondedtdroughtstressbyegulatingProaccuulation，Sactivityandmembrae lipidperoidatio，tus demonstrating certain drought adaptability.

Key Words：China rose; PEG 6ooo; drought stress; physiological characteristics; drought tolerance

月季（Rosaspp.）是蔷薇科（Rosaceae）蔷薇属多年生木本花卉[1-2]，兼具极高的观赏、文化和经济价值，在园林景观配置、切花生产及家庭园艺中应用广泛。（剩余6324字）