No Detail Found!

Correlation analysis between morphological, physiological and yield traits under salinity stress condition in wheat (triticum Aestivum l.) genotypes

Author(s)
N. Gandahi Department of Plant Breeding and Genetics, Sindh Agriculture University, Tandojam, Pakistan
A. W. Baloch Department of Plant Breeding and Genetics, Sindh Agriculture University, Tandojam, Pakistan
S. M. Sarki Department of Soil Science, Sindh Agriculture University, Tandojam, Pakistan
M. M. Lund Department of Agronomy, Sindh Agriculture University,Tandojam, Pakistan
M. N. Kandhro Department of Agronomy, Sindh Agriculture University,Tandojam, Pakistan
Abstract
Salinity is one of the key factors reducing the plant growth and productivity of major crops including wheat. However, identifying the multiple genetic parameters associated with salt tolerance during different growth stages is critical for the evaluation and enhancement of wheat genotypes. In this context, a field experiment in non-saline and saline soil was carried out for correlation analysis of 17 morphological, physiological and yield traits in 22 genotypes of wheat. The experiment was carried out at experimental field of NIA, Tandojam during 2018-2019 in a Randomized Complete Block Design (RCBD) with three replications and two treatments (non-saline soil and salinity level of 12 dS m-1). The obtained mean squares showed significant differences among the tested genotypes for all the studied characters, reflecting that there are abundant genetic variations present in these wheat genetic resources for further utilization in wheat improvement programs. The correlation analysis demonstrated that a variety of characters, including spike length (non-saline r = 0.59**; salinity r = 0.37*), spikelets spike-1 (non-saline r = 0.49**; salinity r = 0.46**), grains spike-1 (non-saline r = 0.49**; salinity r = 0.43**), biological yield plot-1 (non-saline r = 0.56**; salinity r = 0.70**), harvest index (non-saline r = 0.24*; salinity r = 0.26*), relative water content (non-saline r = 0.53**; salinity r = 0.50**), seed index (nonsaline r = 0.29*; salinity r = 0.52**) and K+ (non-saline r = 0.28*; salinity r = 0.32**) showed positive and significant associations with grain yield plot-1 in non-saline and salinity stress conditions. The results suggest that these above-mentioned characters may be set as selection criteria in breeding study to improve wheat genotypes for high yielding under saline filed conditions.
Publication Details
Page(s) 129-134
DOI DOI not available
Published Journal: Pakistan Journal of Agriculture, Agricultural Engineering and Veterinary Sciences, Volume: 36, Issue: 2, Year: 2020

Request the full text from PASTIC

Keywords
yield, salinity, Wheat, correlation, Yield components
0

Citations

0

Downloads

39

Views