Effect of copper on growth, yield and concentration of Fe, Mn, Zn and Cu in wheat plants (Triticum aestivum L.)

A pot experiment was conducted at six graded levels of copper (Cu) viz., 0, 0.5, 1.0, 1.5, 2.0 and 2.5 mg kg(-1) to test the response of wheat plants grown in a copper-responsive alluvial soil (entisol) under glass house conditions. The growth attributes like plant height, fresh and dry matter yield...

Full description

Saved in:
Bibliographic Details
Published inJournal of environmental biology Vol. 30; no. 4; p. 485
Main Authors Kumar, Ratan, Mehrotra, N K, Nautiyal, B D, Kumar, Praveen, Singh, P K
Format Journal Article
LanguageEnglish
Published India 01.07.2009
Subjects
Copper - metabolism
Copper - pharmacology
Edible Grain - drug effects
Edible Grain - growth & development
Edible Grain - metabolism
Iron - metabolism
Manganese - metabolism
Metals, Heavy - metabolism
Plant Leaves - drug effects
Plant Leaves - growth & development
Plant Leaves - metabolism
Triticum - drug effects
Triticum - growth & development
Triticum - metabolism
Zinc - metabolism
Online AccessGet more information

Cover

More Information
Summary:A pot experiment was conducted at six graded levels of copper (Cu) viz., 0, 0.5, 1.0, 1.5, 2.0 and 2.5 mg kg(-1) to test the response of wheat plants grown in a copper-responsive alluvial soil (entisol) under glass house conditions. The growth attributes like plant height, fresh and dry matter yield, percent dry matter enhanced with increasing Cu levels and was maximum at 1.5 mg kg(-1) Cu while the number of tillers was minimum at this level. The grain yield at 1.5 mg kg(-1) Cu was enhanced by 62.9% from the control. The increase in weight of 1000 grains ranged from 33.93 to 41.35 g in comparison to control (32.58 g). Harvest index (%) also increased and ranged from 39.42 to 47.73 in different treatments in comparison to control (35.92). Both 1000 grain weight and harvest index were maximum in the plants at 1.5 mg kg(-1) copper. Cu concentrations in leaves, grain and straw enhanced with increasing levels of Cu application. The Fe concentration in leaves was significantly reduced by Cu application and the reduction was 10.3% at 2.5 mg kg(-1) Cu and was not influenced in by Cu application in grain and straw. The Mn concentration was not affected by Cu application in any of the plant part studied. However, Zn concentration decreased significantly at higher levels of Cu (2.0 and 2.5 mg kg(-1)) in leaves and remained unaffected in the grain and straw.
ISSN:0254-8704