| 低氮素和水杨酸对黄瓜子叶离体培养中花芽分化的影响 |
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| 引用本文： | 任红旭,陈雄,赵晓俊,王亚馥.低氮素和水杨酸对黄瓜子叶离体培养中花芽分化的影响[J].园艺学报,1999,26(2):105-109. |
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| 作者姓名： | 任红旭 陈雄 赵晓俊 王亚馥 |
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| 作者单位： | 1. 兰州大学干旱农业生态国家重点实验室,兰州730000
2. 南开大学生命科学院生物系,天津300071 |
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| 摘 要： | 研究了低氮营养和水杨酸对离体黄瓜子叶开花的影响。结果表明，低氮营养（总氮量为３０．０．Ｌ＾－１，ＮＯ＾－３－Ｎ：ＮＨ＾－４－Ｎ为２：１），显著促进了花芽分化，低浓度水杨酸（ＳＡ１０．０μｍｏｌ．Ｌ＾－１）对花芽分化也有明显促进作用，高浓度ＳＡ（高于１０．０μｍｏｌ．Ｌ＾－１）则起抑制作用；低氮营养条件下施以低浓度ＳＡ（１０．０μｍｏｌ．Ｌ＾－１）对于促进子叶花芽分化效果最佳。
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| 关 键 词： | 黄瓜 子叶 花芽分化 低氮营养 水杨酸 |
| 修稿时间： | 1998-06-08 |
Effects of Nitrogen Nutrition and Salicylic Acid on Floral Bud Initiation in Cucumber Cotyledon Culture |
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| Ren HongXu,Chen Xiong,Zhao XiaoJun,Wang YaFu.Effects of Nitrogen Nutrition and Salicylic Acid on Floral Bud Initiation in Cucumber Cotyledon Culture[J].Acta Horticulturae Sinica,1999,26(2):105-109. |
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| Authors: | Ren HongXu Chen Xiong Zhao XiaoJun Wang YaFu |
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| Abstract: | In this experiment,the effects of nitrogen nutrition and salicylic acid on floral bud formation in the culture of cucumber cotyledons(Cucumis sativus L.cv.Jinyan No.4 )were studied.When the total nitrogen concentration in the medium was reduced to the half of Murashige and Skoog(MS)medium,and the ratio of NO-3NH 4 was changed to 21,the floral initiation was promoted.Salicylic acid also had promotive effect when its concentration was 10.0 molL-1.Activities of nitrite reductase(NR),phenylalanine ammonialyase(PAL)and catalase(CAT)were examined during the development of floral bud.The results showed that the activities of NR and PAL closely associated with floral bud formation.But there was no obvious relationship between CAT activity and floral bud formation. |
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| Keywords: | Cucumis sativus L Cotyledon Floral bud initiation Poor nitrogen nutrition Salicylic acid |
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