中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 不同磷素水平对水稻根系生长及部分营养元素吸收的影响 西南大学学报(自然科学版) 2015,37 (7) 30-36
Position: Home > Articles > Effects of Different Phosphorus Levels on Root Growth of Rice Cultivars and the Absorption of Some Nutrient Elements Journal of Southwest University(Natural Science Edition) 2015,37 (7) 30-36

不同磷素水平对水稻根系生长及部分营养元素吸收的影响

作  者：
王静;章林平;王利鹃;朱亦君;邵国胜;崔翠
单  位：
西南大学农学与生物科技学院;中国水稻研究所
关键词：
磷;水稻(Oryza Sativa L.);营养元素吸收;根系
摘  要：
以珍汕97B和密阳46为研究材料,采用营养液培养,研究1mg/L,10mg/L和20mg/L 3种不同磷质量浓度对水稻根系生长、根系阳离子交换量(CEC)及部分矿质元素吸收的影响.结果表明,较低的外源磷素水平(1 mg/L)显著提高植株总根长、根体积、根表面积和根直径.低磷水平可以降低2个品种根系阳离子交换能力;高磷水平处理10d和20d时,2个品种水稻根系阳离子交换能力表现不同,其中珍汕97B根系阳离子交换量在2个时间段均显著增加,较对照分别增加24.9%和16.33%;而密阳46则较对照差异不具有统计学意义.从外源施磷水平对水稻植株地上部分和地下部分磷来看,低磷处理显著降低了2个品种植株地上与地下部分磷元素的积累,并影响其对Fe,Mn和Zn的吸收和运转;高磷(20mg/L)处理后,促进了幼苗磷素吸收和积累,对铁(Fe),锰(Mn)和锌(Zn)的吸收与积累也因品种不同而出现不同的变化特点.不同的外源磷素施用对2品种铜元素的吸收和运输影响较小.
译  名：
Effects of Different Phosphorus Levels on Root Growth of Rice Cultivars and the Absorption of Some Nutrient Elements
作  者：
WANG Jing;ZHANG Lin-ping;WANG Li-juan;ZHU Yi-jun;SHAO Guo-sheng;CUI Cui;School of Agronomy and Biotechnology,Southwest University;China National Rice Research Institute;
关键词：
phosphorus;;rice(Oryza sativa L.);;nutrient element absorption;;root
摘  要：
Rice varieties Zhenshan97 Band Miyang46were cultured in nutrient solutions containing phosphorus at P2O5 1,10 and 20mg/L to study the effects of P on root growth and root cation exchange capacity(CEC)and on the absorption of some mineral elements by the plants.Phosphorus at a low level(1mg/L)significantly improved total root length,root volume,root surface area and average diameter of the root of the two varieties.Low P level(1mg/L)significantly reduced root CEC of both varieties.At a high P level(20 mg/L),the two varieties responded differently:root CEC of Zhenshan97 Bsignificantly increased after 10 and 20days' treatment,by 24.9% and 16.33%,as compared with the control,respectively,while that of Miyang46 was not significantly different from that of the control.As for phosphorus content of rice plants,low P level(1mg/L)significantly reduced P content of the shoot and the roots of both varieties,and affected absorption and transportation of Fe,Mn and Zn in them.On the contrary,high P level(20mg/L)improved absorption and accumulation of phosphorus,and resulted in huge change in Fe,Mn and Zn contents in rice seedlings between the two varieties.Different phosphorus levels had little influence on absorption of Cu in rice seedlings.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46