| 两种浓度营养液下水培生菜和小白菜生长特性及品质研究 |
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| 引用本文： | 任尚杰,方伟,张国敏,张余洋. 两种浓度营养液下水培生菜和小白菜生长特性及品质研究[J]. 作物杂志, 2011, 0(3): 42-46 |
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| 作者姓名： | 任尚杰 方伟 张国敏 张余洋 |
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| 作者单位： | 1. 华中农业大学园艺林学学院,430070,湖北,武汉
2. 华中农业大学园艺林学学院,430070,湖北,武汉;华中农业大学作物遗传改良国家重点实验室,430070,湖北,武汉 |
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| 基金项目： | 国家973项目，国家自然科学基金 |
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| 摘 要： | 比较了2个生菜品种和2个小白菜品种在两种浓度(0.5剂量、1.0剂量)营养液中水培的叶片数、叶部横径、株高、叶绿素含量、根系、单株鲜重、Vc含量和硝酸盐积累等生长特性和品质指标。结果表明,不同蔬菜种类对营养液浓度要求有显著差异,不同蔬菜品种也表现出不同的生长特性。与0.5剂量营养液浓度相比,1.0剂量营养液浓度促进或保持生菜生长发育,显著降低生菜硝酸盐含量。0.5剂量营养液有利于小白菜生长,显著提高小白菜Vc含量,有效减少硝酸盐积累。供试的小白菜和生菜品种在不同浓度水培营养液下叶片数趋于一致。意大利奶油生菜叶部横径小于弘农生菜叶部横径,但根系明显长于弘农生菜根系。小白菜叶绿素含量显著高于生菜叶绿素含量。0.5剂量下意大利奶油生菜单株鲜重显著高于该浓度下的五月慢小白菜单株鲜重。小白菜Vc含量在不同浓度水培营养液下均显著高于生菜Vc含量。较低浓度营养液下四月慢小白菜的Vc含量最高,而较高浓度营养液更有利于五月慢小白菜Vc含量积累。
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| 关 键 词： | 营养液浓度 水培 品质 生菜 小白菜 |
Growth and Quality of Hydroponically Cultured Lettuce and Pakchoi under Two Different Solution Concentration |
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| Ren Shangjie,Fang Wei,Zhang Guomin,Zhang Yuyang. Growth and Quality of Hydroponically Cultured Lettuce and Pakchoi under Two Different Solution Concentration[J]. Crops, 2011, 0(3): 42-46 |
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| Authors: | Ren Shangjie Fang Wei Zhang Guomin Zhang Yuyang |
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| Affiliation: | Ren Shangjie1,Fang Wei1,Zhang Guomin1,Zhang Yuyang1,2(1College of Horticulture and Forestry,Huazhong Agricultural University,Wuhan 430070,Hubei,2National Key Laboratory of Crop Genetic Improvement,China) |
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| Abstract: | Four cultivars of lettuce and pakchoi were used in hydroponics culture under two different solution concentrations(0.5 and 1.0 dosage),and several growth parameters were investigated including leaf number,leaf partwidth,plant height,leaf chlorophyll content,root length,plant fresh weight,vitamin C(Vc) content and nitrate accumulation.The results indicated that the vegetable types varied on optimal solution concentration,and different vegetable cultivars exhibited specific growth characteristics.Compared wit... |
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| Keywords: | Nutrition solution concentration Solution culture Quality Lettuce(Lactuca sativaL.) Pakchoi(Brassica rapaL.ssp.chinensis) |
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