ZHAO Jing,QIU Qiang,LIU Qing-jun,et al.Effect of Phosphorus Levels on Soybean Growth and Physiological Traits of SoybeanVariety with Different Iron Efficiency[J].Soybean Science,2016,35(04):609-615.[doi:10.11861/j.issn.1000-9841.2016.04.0609]
磷水平对不同铁效率大豆生长和生理特性的影响
- Title:
- Effect of Phosphorus Levels on Soybean Growth and Physiological Traits of SoybeanVariety with Different Iron Efficiency
- Keywords:
- Soybean; Phosphorus; Fe-efficient; Fe-inefficient; Principal components analysis; Logistic equation
- 分类号:
- S565. 1
- 文献标志码:
- A
- 摘要:
- 为探明磷水平与大豆铁效率之间的关系,以铁效率差异显著的大豆品种为试验材料,采用水培方式和裂区设计对地上部和根系性状分别进行主成分分析,利用Logistic 方程动态模拟地上部和根系的干物质积累过程,综合评价磷元素的生理作用,进一步探讨磷水平与大豆铁效率之间的关系。结果表明: 通过主成分分析将11 个地上部指标和10 个根系指标分别综合为4 种因子; 磷元素主要是通过光合效率和根系发达水平来发挥其生理作用。Logistic 方程结果表明基因型以及磷供应水平影响干物质的积累为: 在高磷条件下,铁高效品种地上部和根系的干物质积累能力均强于铁低效品种; 铁高效品种在无磷、低磷和高磷3 种供磷条件下地上部干物质积累量差异不很明显; 高磷并不能使铁低效品种地上部干物质积累量提高。在高磷条件下,铁高效品种根系干物质积累能力强于铁低效品种; 无磷胁迫激发铁高效品种和铁低效品种根系干物质迅速累积,其中铁低效品种根系干物质积累能力强于铁高效品种。以上结果表明大豆体内存在复杂的磷铁互作关系,且过量施磷无益于产量增加。
- Abstract:
- Aiming to prove the relationship between phosphorus level and iron efficiency of soybean,Fe-efficient soybean varietyand Fe-inefficient soybean variety were used in this experiment,shoot traits and root traits were respectively analyzed byprincipal component analysis in hydroponics and split blot design,then shoot and root dry matter accumulation processes wereseparately simulated by Logistic equation,evaluated physiological role of phosphorus,further exploring the relationship betweenphosphorus level and iron efficiency of soybean. The results showed that,by principal component analysis,11 shoottraits and 10 root traits respectively integrated into 4 principal components. Phosphorus played an important role in photosyntheticefficiency and root developed levels. Logistic equation further illustrated that genotypes and phosphorus supply levelhave influence on dry matter accumulation rule: under high phosphorus level,shoot and root dry matter accumulation ability ofFe-efficient soybean variety were stronger than Fe-inefficient variety. No phosphorus,low phosphorus and high phosphorus onshoot dry matter accumulation of Fe-efficient variety were not obvious. High phosphorus can’t help Fe-inefficient variety increasingshoot dry matter accumulation. Under high phosphorus,root dry matter accumulation ability of Fe-efficient varietywas higher than Fe-inefficient variety,no phosphorus stress stimulates Fe-efficient and Fe-inefficient variety to rapid accumulateroot dry matter,and Fe-inefficient variety higher than Fe-efficient variety. Above results indicate that P-Fe interaction iscomplex in soybean,and excessive phosphorus is not conducive to yield increase.
参考文献/References:
[1] Sánchez-Rodríguez A R,del Campillo M,Torrent J. The severityof iron chlorosis in sensitive plants is related to soil phosphorus levels[J]. Journal of the Science of Food and Agriculture,2014,94: 2766-2773.
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备注/Memo
基金项目: 国家自然科学基金( 31271647,31101111) ; 吉林省自然科学基金( 20150101100JC,201115198) 。第一作者简介: 赵婧( 1984-) ,女,硕士,助理研究员,主要从事大豆生理与栽培研究。E-mail: zhao114434260@163. com。通讯作者: 张伟( 1979-) ,男,博士,研究员,主要从事大豆生理与栽培研究。E-mail: zw. 0431@163. com。闫晓艳( 1960-) ,女,学士,研究员,主要从事土壤肥料与作物栽培研究。E-mail: yanxy8548@126. com。