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| Effects of Different Potassium Dosage on Aroma Components and Contents in Muskmelon（Cucumis melo L.）Fruit |
| WANG Rui-zhu,WANG Huai-song,HE Chao-xing*,ZHANG Zhi-bin |
| Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China |
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Abstract Aroma components of muskmelon（Cucumis melo L.）fruits‘Zhongmi No.5’were analyzed by Gas Chromatograph-Mass Spectrometry(GC-MS)treated by 4 different potassium fertilizer dosage applications.The results showed that 4 treatments low-K,middle-K(CK),middle and high-K,high-K contained 32,35,34,39 aroma components,respectively,which represented about 96.78 %,98.39 %,95.27 %,90.95 % peak area of the total.Along with the increasing dosage of potassium fertilizer,the ester and alcohols contents in muskmelon fruit were inverse ratio.The aroma components,such as 3,6-Nonadien-1-ol(E,Z),(6Z)-Nonen-1-ol,(Z)-3-Nonen-1-ol,2,3-Butanedioldiacetate,Butanoic acid,2-methylethyl ester,6-Nonen-1-ol-acetate and 3-Nonen-1-ol,(Z)- had significant differences in relative contents.The aroma components will follow the trend of increasing first then decreasing afterwards along with the increase of potassium fertilizer dosage.The best quality of muskmelon fruit will be achieved by suitable potassium fertilizer treatment(9.6 g per plant).
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Received: 25 March 2009
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