| DA—6和BR＋GA3对菠菜生长和光合速率的影响 |
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| 引用本文： | 梁广坚 李芸瑛. DA—6和BR＋GA3对菠菜生长和光合速率的影响[J]. 园艺学报, 1998, 25(4): 356-360 |
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| 作者姓名： | 梁广坚 李芸瑛 |
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| 作者单位： | 西江大学生物研究所，西江大学生物系 |
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| 摘 要： | 向菠菜叶面喷两次己酸二乙氨基乙醇酯（ＤＡ６）４０ｍｇ／Ｌ或ＢＲ（０．０３ｍｇ／Ｌ）＋ＧＡ３（２０ｍｇ／Ｌ）水溶液，与对照相比，ＢＲ＋ＧＡ３处理增加了净光合速率、维生素Ｃ含量和地上部重量；显著地增加了株高、叶柄长度和重量以及２月播种菠菜的叶柄重量／地上部重量的比值。ＤＡ６处理不但比对照明显增加地上部重量，而且比ＢＲ＋ＧＡ３处理明显增强了光合速率，增加了１１月播种菠菜叶片长度和重量，降低叶柄占地上部重量的比值，显著增加了叶片可溶性糖和维生素Ｃ的含量。
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| 关 键 词： | 菠菜；DA-6（己酸二乙氨基乙醇酯）；BR＋GA_3；生长；光合速率 |
Effect of DA 6 and BR GA 3 on Growth and Photosynthetic Rate in Spinach |
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| Liang Guangjian,Li Yunying,and Shao Ling. Effect of DA 6 and BR GA 3 on Growth and Photosynthetic Rate in Spinach[J]. Acta Horticulturae Sinica, 1998, 25(4): 356-360 |
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| Authors: | Liang Guangjian Li Yunying and Shao Ling |
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| Abstract: | The spinach( Spinacia oleracea L.cv.inermis peterm)plants were sprayed with aqueous solution of DA 6(dialkylaminoethyl alkanoate)or BR(epibrassinolide) GA 3 at concentrations of 40mg/L,20mg/L and 0.03mg/L,respectively.Compared with the control,BR GA 3 increased photosynthetic rate,vitamine C content and shoot weight,length and weight of petiole,also increased the ratio of petiole FW to shoot FW of the plants sowed in Feb.DA 6 treatment had greater photosynthetic rate and shoot weight than those of BR GA 3 treatment especially under plastic tunnel in winter.DA 6 also increased length and weight of the blades,reduced the ratio of petiole weight to shoot weight and increased contents of soluble sugar and Vc.Therefore,DA 6 treatment could increase the yield,commercial value and quality of spinach. |
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| Keywords: | Spinacia oleracea DA 6(dialkylaminoethyl alkanoate) BR GA 3 Growth Photosynthetic rate |
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