Evaluation of Different Mn Efficiency Indices and their Relation to Morphophysiological Traits in Diverse Wheat Genotypes

Wheat genotypes display differential tolerance to manganese (Mn) deficiency. Growing Mn-efficient cultivars in Mn deficient soil could be effective in improving yields. A pot experiment was conducted with eight genotypes grown in Mn deficient soil treated with 0 (no Mn fertilizer) and 50 ppm (50 mg...

Full description

Saved in:
Bibliographic Details
Published in:Journal of plant nutrition 2015-05, Vol.38 (6), p.938-958
Main Authors: Jhanji, Shalini, Sekhon, N. K., Sadana, U. S., Sharma, Achla, Shukla, A. K.
Format: Article
Language:English
Subjects:
efficiency indices
genotypes
grain yield
manganese
mn efficiency
morphophysiological traits
wheat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Wheat genotypes display differential tolerance to manganese (Mn) deficiency. Growing Mn-efficient cultivars in Mn deficient soil could be effective in improving yields. A pot experiment was conducted with eight genotypes grown in Mn deficient soil treated with 0 (no Mn fertilizer) and 50 ppm (50 mg Mn kg −1 soil applied as mangansese sulfate monohydrate (MnSO 4 .H 2 O) Mn. The genotypes were classified on the basis of grain yield and grain physiological efficiency as efficient and responsive (SAMNYT 410, GLUPRO 200, PBW 621, and BW 9178), efficient and nonresponsive, inefficient and responsive (HD 2967), and inefficient and nonresponsive (PDW 314, PDW 291, and PBW 636). The genotypes in different groups differed in morphophysiological characteristics; efficient and responsive genotypes recorded more leaf area, higher SPAD index, higher Fv/Fm ratio, and longer roots than inefficient and nonresponsive. Efficient and responsive genotypes are desirable by farmers, whereas inefficient and responsive genotypes in a breeding program for their Mn-responsive characteristics.
ISSN:0190-4167
1532-4087
DOI:10.1080/01904167.2014.963115