| 钾素营养对大蒜生长、光合特性及品质的影响 |
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| 引用本文： | 陈昆,刘世琦,张自坤,张涛,孟凡鲁. 钾素营养对大蒜生长、光合特性及品质的影响[J]. 植物营养与肥料学报, 2011, 17(2): 506-512. DOI: 10.11674/zwyf.2011.0188 |
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| 作者姓名： | 陈昆 刘世琦 张自坤 张涛 孟凡鲁 |
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| 作者单位： | 1.山东农业大学园艺科学与工程学院,作物生物学国家重点实验室,农业部园艺作物生物学重点开放实验室,山东泰安271018 |
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| 基金项目： | 国家科技支撑项目(2006BAD13B06-4-9); 山东省农业重大创新项目资助 |
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| 摘 要： | 采用溶液培养试验探讨了钾对大蒜苗期生长、生理生化指标及品质的影响。供试营养液K+浓度分别为0、3.0、6.0、9.0和12.0 mmol/L。结果表明，K+浓度在0～6.0 mmol/L范围内，大蒜苗期生长量、色素含量、净光合速率、可溶性蛋白质及大蒜素含量随K+浓度升高而增加；当达到9.0 mmol/L时，上述指标则呈下降趋势。营养液中K+浓度为6.0 mmol/L时，大蒜叶片及假茎生长量、光合色素含量、光合速率及蒸腾速率均最大，假茎及叶片大蒜素含量分别比0 mmol/L时高出63.57%和62.04%，叶片可溶性蛋白质含量明显高于其他处理；假茎及叶片可溶性糖含量在K+浓度为9.0 mmol/L时最高。在施钾各处理间游离氨基酸含量差异不显著，但均显著低于不施钾处理。总之，钾能明显促进大蒜苗期假茎和叶片生长，增加叶片色素含量，极大改善叶片光合特性，提高大蒜幼苗营养品质。营养液K+浓度以6.0 mmol/L时表现最好。
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| 关 键 词： | 大蒜 钾 生长 光合特性 品质 |
| 收稿时间： | 2010-04-26 |
Effects of potassium on growth, photosynthetic characteristics and quality of garlic seedlings |
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| CHEN Kun,LIU Shi-qi,ZHANG Zi-kun,ZHANG Tao,MENG Fan-lu. Effects of potassium on growth, photosynthetic characteristics and quality of garlic seedlings[J]. Plant Nutrition and Fertilizer Science, 2011, 17(2): 506-512. DOI: 10.11674/zwyf.2011.0188 |
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| Authors: | CHEN Kun LIU Shi-qi ZHANG Zi-kun ZHANG Tao MENG Fan-lu |
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| Affiliation: | 1.College of Horticulture Science and Engineering,Shandong Agricultural University/State Key Laboratory of Crop Biology/Agriculture Ministry Key Laboratory of Horticultural Crop Biology,Taian,Shandong 271018,China |
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| Abstract: | In this study,a solution culture experiment of potassium was carried out to investigate the effects of potassium on growth,photosynthetic characteristics and quality of garlic seedling.There were five different K+contents,0,3.0,6.0,9.0 and 12.0 mmol/L,in the experiment.The results indicate that in the range of 0-6.0 mmol/L,the garlic seedling increment,pigment content,net photosynthesis rate,soluble protein and allicin contents are increased with increasing concentration of K+,and then decreased with increa... |
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| Keywords: | garlic potassium growth photosynthesis quality |
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