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2001•Journal of Guangxi Normal UniversityRequires access

ENHANCEMENT OF DROUGHT RESISTANCE OF POMELO SEEDLINGS BY UNICONAZOLE

Shaoyi Ruan

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Abstract

Pomelo seedlings were foliar sprayed by 100mg/L uniconazole,and then treated with water stre-ss.The results show that uniconazole treatment can improve leaf Ψw and RWC under water stress,and dorought-resistance is enhanced.Uniconazole treatment can also promote leaf SOD,APX activities,and AsA,GSH,free proline contents,while it has no effect on CAT activity.It suggests that uniconazole treatment increass defensive capacity of membrane lipid peroxidation and stability of membrane,resulting in the enhancement of drought resistance of pomelo seedlings.

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What this paper is about

Pomelo seedlings were foliar sprayed by 100mg/L uniconazole,and then treated with water stre-ss.The results show that uniconazole treatment can improve leaf Ψw and RWC under water stress,and dorought-resistance is enhanced.Uniconazole treatment can also promote leaf SOD,APX activities,and AsA,GSH,free proline contents,while it has no effect on CAT activity.It suggests that uniconazole treatment increass defensive capacity of membrane lipid peroxidation and stability of membrane,resulting in the enhancement of drought resistance of pomelo seedlings.

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Available abstract

Pomelo seedlings were foliar sprayed by 100mg/L uniconazole,and then treated with water stre-ss.The results show that uniconazole treatment can improve leaf Ψw and RWC under water stress,and dorought-resistance is enhanced.Uniconazole treatment can also promote leaf SOD,APX activities,and AsA,GSH,free proline contents,while it has no effect on CAT activity.It suggests that uniconazole treatment increass defensive capacity of membrane lipid peroxidation and stability of membrane,resulting in the enhancement of drought resistance of pomelo seedlings.

Key concepts: APX, Proline, Drought resistance, Horticulture, Water stress, Lipid peroxidation, Chemistry, Resistance (ecology)

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