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
DOI:10.30848/PJB2023-6(2)
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)
Download