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- W2364320275 abstract "Under light drought stress,paclobutrazol(PP333) of different concentrations(150 mg/m2,300 mg/m2,450 mg/m2) were sprayed on leaves of Lolium perenne L.cv.Pirouette soaked with PVA for twelve hours before planting in order to discuss effects of PP333 and PVA on drought-resistance of perennial ryegrass seedlings.The results showed that seedling percentage and leaf relative water content(RWC) of perennial ryegrass soaked with 2% PVA increased by 0.13-fold and 0.03-fold respectively,and differences were significant at 0.01 level.After the use of 2%PVA+150 mg/m2 PP333,leaf RWC,enzyme activities of SOD,POD and CAT increased by 0.04-fold,0.40-fold,0.44-fold and 0.17-fold,respectively,MDA content decreased by 51.58%,plant height decreased by 42.57%,and differences were significant at 0.05 level.And the effect of 2%PVA+150 mg/m2 PP333 on drought resistance of perennial ryegrass was better than 2%PVA and 150 mg/m2 PP333 single.When the concentration of PP333 was increased to 300～450 mg/m2 with pretreatment of 2%PVA,the oxidative damage to leaves sustained the protective enzyme activities decreased.Generally,2%PVA+150 mg/m2 PP333 can obviously release the effect of drought stress on germination and seedling growth of perennial ryegrass,and had the best effect." @default.
- W2364320275 created "2016-06-24" @default.
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- W2364320275 date "2007-01-01" @default.
- W2364320275 modified "2023-09-26" @default.
- W2364320275 title "Effects of paclobutrazol and PVA on drought resistance of perennial ryegrass seedlings under light drought stress" @default.
- W2364320275 hasPublicationYear "2007" @default.
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