|
|||||
|
|
| 培养液NO-3/NH+4比对甜菜幼苗NO-3、NH+4 吸收特性的影响 | |
| 引用本文： | 张多英,马凤鸣,赵越,李彩凤,马国巍,李士龙.培养液NO-3/NH+4比对甜菜幼苗NO-3、NH+4 吸收特性的影响[J].作物学报,2006,32(4):548-552. |
| 作者姓名： | 张多英 马凤鸣 赵越 李彩凤 马国巍 李士龙 |
| 作者单位： | 1. 东北农业大学,黑龙江哈尔滨150030;黑龙江东方学院,黑龙江哈尔滨150086 2. 东北农业大学,黑龙江哈尔滨150030 3. 黑龙江省农业科学院,黑龙江哈尔滨150086;东北农业大学,黑龙江哈尔滨150030 |
| 摘 要： | 采用标准偏高糖型甜研7号与标准偏丰产型甜研8号2个二倍体纯系品种及水培方法，研究了子叶期（11d）甜菜对NO3^-和NH4^＋的吸收特性以及不同NO3^-／NH4^＋比对苗期（31d）甜菜吸收特性的影响。发现了子叶期甜研7号较甜研8号对NH4^＋有较大的Vmax,有利于NH4^＋的吸收。低NH4^＋浓度比促进甜菜对N03的吸收。而且甜研7号受到的影响相对大于甜研8号。不同NO3^-／NH4^＋也影响甜菜对NH4^＋的吸收速率，2品种所受的影响并不相同。2品种遗传特性不同导致了甜研7号对NH4^＋的吸收较甜研8号敏感。高浓度NH4^＋的存在促进了甜研7号与甜研8号对NH4^＋的吸收。说明可以通过调节甜菜对NO3^-与NH4^＋的吸收与同化关系来调控甜菜的氮代谢，以提高甜菜的产量与质量。 |
| 关 键 词： | 甜菜 吸收特性 |
| 收稿时间： | 2004-12-03 |
| 修稿时间： | 2005-09-18 |
Effect of NO-3/NH+4 Ratio in Culture Solution on Nitrate and Ammonium Uptake in Seedlings of Sugar Beet (Beta vulgaris L.) |
|
| ZHANG Duo-Ying,MA Feng-Ming,ZHAO Yue,LI Cai-Feng,MA Guo-Wei,LI Shi-Long.Effect of NO-3/NH+4 Ratio in Culture Solution on Nitrate and Ammonium Uptake in Seedlings of Sugar Beet (Beta vulgaris L.)[J].Acta Agronomica Sinica,2006,32(4):548-552. | |
| Authors: | ZHANG Duo-Ying MA Feng-Ming ZHAO Yue LI Cai-Feng MA Guo-Wei LI Shi-Long |
| Institution: | 1. Northeast Agricultural University, Harbin 150030, Heilongjiang; 2. Heilongjiang Oriental College, Harbin 150086, Heilongjiang; 3. Heilongjiang Academy of Agricultural Sciences, Harbin 150086, Heilongjiang, China |
| Abstract: | Solution culture experiments were carried out to study uptake character at cotyledon stage and the effect of NO~-_3/NH~ _4 ratio on nitrate and ammonium uptake at seedling stage with two cultivars of sugar beet,including high sugary Tianyan 7 and prolific Tianyan 8.V_(max) of NH~ _4 was higher in Tianyan 7 than in Tianyan 8 at cotyledon stage(Table 1).It was benefit for Tianyan 7 to uptake NH~ _4.After cultivated with different NO~-_3/NH~ _(4),there was significant deviation of NO~-_3 uptake between Tianyan 7 and Tianyan 8(Fig.3 and Fig.4).Nitrate uptake was enhanced by optimal ammonium in nutrient solution.Tianyan 7 was more affected than Tianyan 8(Table 2).Ammonium uptake was also affected by NO~-_3/NH~( )_4ratio in culture solution(Fig.5 and Fig.6).It was enhanced by high NH~ _4 concentration in nutrient solution(Table 3),and Tianyan 7 was more sensitive to ammonium uptake than Tianyan 8 due to the different genetic properties of two cultivars.In conclusion nitrogen metabolism can be regulated through regulating the relationship between nitrate and ammonium uptake and assimilation to increase output and quality of sugar beet. |
| Keywords: | NO-3 NH 4 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |