[1]申忠宝,齐志勇,金剑.大豆不同生殖生长期干旱胁迫条件下施磷对根系形态性状的影响[J].大豆科学,2007,26(04):528-532.[doi:10.3969/j.issn.1000-9841.2007.04.015]
　SHEN Zhong-bao,QI Zhi-yong,JIN Jian.Effect of Phosphorus Application on Morphological Characters of Root Under Drought Stress at Different Reproductive Stages in Soybean[J].Soybean Science,2007,26(04):528-532.[doi:10.3969/j.issn.1000-9841.2007.04.015]
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大豆不同生殖生长期干旱胁迫条件下施磷对根系形态性状的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第26卷 期数: 2007年04期 页码: 528-532 栏目: 出版日期: 2007-08-25
Title:
Effect of Phosphorus Application on Morphological Characters of Root Under Drought Stress at Different Reproductive Stages in Soybean
文章编号:
1000-9841(2007)04-0528-05
作者:
申忠宝1; 齐志勇2; 金剑3
1黑龙江省农业科学院，哈尔滨 150086；
2哈尔滨市环境工程评估中心，哈尔滨 150076；
3中国科学院东北地理与农业生态研究所，哈尔滨 150081
Author(s):
SHEN Zhong-bao1; QI Zhi-yong2; JIN Jian3
1Heilongjiang Academy of Agricultural Sciences，Harbin 150086;?
2Harbin Evaluation Center for Environmental Engineering，Harbin 150076;
3Northeast Institute of Geography and Agro-ecology，Chinese Academy of Sciences，Harbin 150040
关键词:
大豆; 水分胁迫; 施磷量; 根系性状; 产量
Keywords:
Soybean; Water Stress; Phosphorus application; Root traits; Yield
分类号:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.04.015
文献标志码:
A
摘要:
磷素(P)是提高植物抗水分胁迫能力的重要因子。选取大豆(Glycine maxLMerrill)品种东农434进行盆栽试验，分别在大豆R1期（初花期）和R4期（盛荚期）进行干旱胁迫处理，解析P在干旱胁迫条件下对根系性状和产量的影响。试验设置4个施P水平，即0、7.3、14.6和29.2 mg kg-1。3个水份处理，即（1）全生育期维持田间持水量(FWC)的65%~75%为对照；（2）R1期控水为FWC的30%~40%；（3）R4期控水为FWC的30%~40%。结果表明，两个时期的干旱胁迫均显著影响根系性状，降低产量，且R4期比R1期严重。磷素营养显著改善干旱胁迫所引起的不利影响，增加根干重、根长、根表面积，进而减少大豆产量的损失。
Abstract:
Application of phosphorus (P)fertilizer is an important factor for improving the tolerance to water deficit in many plants.A pot experiment was conducted to identify the effects of P application on soybean adaptability to water deficit at the R1 (initial flowering) and R4 (full pod) stages through the investigation of root morphological traits and resultant yield in a soybean (Glycine maxLMerrill) cultivar (Dongnong 434).The four levels of P application were 0，7.3，14.6 and 29.2 mg kg-1soil，respectively.The three soil moisture treatments were (1) 65%~75% of field water capacity (FWC) as control，(2) 30%~40% of FWC at the R1 stage，and (3) 30%~40% of FWC at the R4 stage.Results showed that root traits and yield were significantly reduced by drought stress at different growth stages，especially at the R4 stage.Application of P enabled to alleviate the adverse effects of drought，to increase the root dry weight，root length，root surface area and consequently yield.

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备注/Memo

基金项目：国家教育部大豆生物技术重点实验室主任基金项目（S13051302）

作者简介：申忠宝（1973-），男，助研，从事杂粮产品研发。E-mail:shzhbao@126.com

更新日期/Last Update: 2014-10-20