NUTRIENT ACCUMULATION AND DISTRIBUTION OF WHEAT GENOTYPES IN RESPONSE TO WATERLOGGING AND NUTRIENT SUPPLY

被引：33

作者：

HUANG, BR ^{[1
]}

JOHNSON, JW ^{[1
]}

NESMITH, DS ^{[1
]}

BRIDGES, DC ^{[1
]}

机构：

[1] UNIV GEORGIA,DEPT HORT,GEORGIA STN,GRIFFIN,GA 30223

来源：

PLANT AND SOIL | 1995年 / 173卷 / 01期

关键词：

NUTRIENT UPTAKE; SOIL NUTRIENT AVAILABILITY; TRITICUM AESTIVUM L; WATERLOGGING RESISTANT;

D O I：

10.1007/BF00155517

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The effect of soil waterlogging and nutrient supply on plant nutrient accumulation and distribution was investigated for two genotypes of winter wheat (Triticum aestivum L.) differing in waterlogging resistance, 'Bayles' and 'Savannah'. Plants were grown in waterlogged or drained sand and fertilized with half-strength or full-strength Hoagland's solution. Waterlogging reduced the concentrations of N, P K, Mg, and Zn in leaves and stems and increased the concentrations of those elements in the root system. The effects were greater for waterlogging-sensitive Bayles than for waterlogging-resistant Savannah. Higher concentrations of Fe and Mn were found in waterlogged plants compared to the control plants for sensitive Bayles. Waterlogging increased the proportion of N and Zn in the root system and decreased that of K in stems for Bayles. The proportion of Fe increased in leaves and stems for Bayles and Savannah under waterlogged conditions, but to a greater extent for Bayles. Doubling the concentrations of all major and minor nutrient elements supplied to the waterlogged rooting medium improved plant nutrient status and enhanced plant dry matter production.

引用

页码：47 / 54

页数：8

共 23 条

[1] RADIAL OXYGEN LOSSES FROM INTACT RICE ROOTS AS AFFECTED BY DISTANCE FROM APEX, RESPIRATION AND WATERLOGGING [J].