| 无基质营养液育苗的营养液浓度对黄瓜幼苗生长的影响 |
| |
| 引用本文： | 任瑞珍,武占会,陈海丽,于平彬,吴震,刘明池.无基质营养液育苗的营养液浓度对黄瓜幼苗生长的影响[J].中国蔬菜,2012,1(20):49-55. |
| |
| 作者姓名： | 任瑞珍 武占会 陈海丽 于平彬 吴震 刘明池 |
| |
| 作者单位： | 1.南京农业大学园艺学院，江苏南京 210095,2北京市农林科学院蔬菜研究中心，北京 100097 |
| |
| 基金项目： | 国家大宗蔬菜产业技术体系专项(CARS-25-G-01);北京市科技计划项目(D101105046510002);北京市农林科学院科技创新能力建设专项(KJCX201104005) |
| |
| 摘 要： | 采用无基质营养液培育黄瓜幼苗，研究不同营养液浓度对黄瓜幼苗生长的影响。结果表明：低浓度（0.5倍和1.0倍全价营养液）处理下，黄瓜幼苗低矮、细弱、生物量低、抗性弱、根体积小、壮苗指数低，这与低浓度营养供应不足进而减慢生长发育进程有关|高浓度（2.0倍）条件下，幼苗前期生长受到抑制，由于幼苗后期胁迫作用未消除，虽然生长有所加快，但幼苗健壮度较低|1.5倍营养液处理显著促进了幼苗的生长，有效地提高了幼苗的生物量、壮苗指数和根系活力，较好地协调了幼苗的生长速率和抗性，胁迫作用不明显，促进作用大于胁迫作用。因此，在黄瓜无基质营养液育苗条件下，1.5倍全价营养液为最适浓度。
|
| 关 键 词： | 无基质营养液育苗 营养液浓度 黄瓜幼苗 生长 |
Effects of Different Nutrition Solution Concentrations on Cucumber Seedling Growth under Seedling Culture without Substrate Nutrient Solution |
| |
| REN Rui-zhen
,
WU Zhan-hui
,
CHEN Hai-li
,
YU Ping-bin
,
WU Zhen
,
LIU Ming-chi.Effects of Different Nutrition Solution Concentrations on Cucumber Seedling Growth under Seedling Culture without Substrate Nutrient Solution[J].China Vegetables,2012,1(20):49-55. |
| |
| Authors: | REN Rui-zhen WU Zhan-hui CHEN Hai-li YU Ping-bin WU Zhen LIU Ming-chi |
| |
| Institution: | 1.College of Horticulture，Nanjing Agricultural University，Nanjing 210095，Jiangsu，China|2Vegetable Research Center，Beijing Academy of Agriculture and Forestry Sciences，Beijing 100097，China |
| |
| Abstract: | By seedling culture without substrate nutrient solution,this experiment studies the effects of different nutrition solution concentrations on the growth of cucumber(Cucumis sativus L.)seedlings. The results showed that the seedling had lower plant height,thinner stem diameter,lower biomass,weaker resistance to stress,smaller root volume and lower seedling index under lower concentration treatments(0.5 and 1.0 times nutrition solution),which were related to deficient nutrition supply under low concentrations,thus the growth and development of seedlings were slowed down.Under higher concentration(2.0 times nutrition solution)treatment,the seedling growth was inhibited during the earlier stage.While in the late stage,although the seedling growth speed was accelerated,its robust degree was still low,due to the un-eliminated stress.The treatment of 1.5 times nutrition solution had significantly promoted the seedling growth,effectively improved the seedling biomass,increased robust seedling index and root activity,and had better coordination between seedling growth rate and resistance.Its promotion role was much bigger than stress effect.Therefore,1.5 fold of nutrition solution is the optimal concentration for nutrient solution seedling culture without substrate. |
| |
| Keywords: | Nutrient solution seedling culture without substrate Nutrition solution concentration Cucumber seedling Growth |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《中国蔬菜》浏览原始摘要信息 |
| 点击此处可从《中国蔬菜》下载免费的PDF全文 |
|
