PJB-2020-568
Assessment of some newly developed wheat lines (Triticum aestivum L.) under natural saline field environments
Muhammad Ubaidullah Shirazi, Muhammad Ali Khan, Muhammad Athar Khan, Asma and Aisha Shereen
Abstract
To evaluate salt tolerance in some newly developed genotypes of wheat (Triticum aestivum L.), field trials were conducted under natural saline field for two consecutive years i.e. Rabi 2018-19 and 2019-20 at Nuclear Institute of Agriculture (NIA), Tandojam. Wheat genotypes were collected from NIFA, Peshawar (20 genotypes), NIAB Faisalabad (1) and ARI Tandojam (1), along with local salt tolerant check i.e. Kiran-95. The soil at control site was non-saline (EC = <4 dS/m) while ECe of saline site ranged from slightly saline (4-8 dS/m) to very highly saline (ECe >16 dS/m). However the genotypes were evaluated on selected uniform patches of medium to high saline i.e. 9-12 dS/m. The genotypes were evaluated on the basis of growth and yield performance. The data illustrated a significant (R2 @ 0.5) reduction in grain yield due to soil salinity. The combine results based on two years growth performance showed that genotype NRL-1683 was tolerant followed by NRL-1677, NRL-1646, NRL-1651, NRL-1685 and NRL-1687. On the contrary poor performance were exhibited by genotypes NRL-1625, NRL-1624, NRL-1680, NRL-1681 and ASYT-1CT-161287, thus categorized as sensitive to high salinity stress. Better performance of tolerant genotypes might be due to less decrease in K+/Na+ ratio and less reduction in chlorophyll (SPAD index), in consequence to lower decrease of leaf area.
To Cite this article:
Shirazi, M.U., M.A. Khan, M.A. Khan, Asma and A. Shereen. 2023. Assessment of some newly developed wheat lines (Triticum aestivum L.) under natural saline field environments. Pak. J. Bot., 55(6): DOI: http://dx.doi.org/10.30848/PJB2023-6(2)
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