| Pak. J. Bot., 43(1): 435-443, 2011. | Back to Contents | ||||
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Updated: 03-03-11 | ||||
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DETECTING DIFFERENCES IN SOME ELITE WHEAT LINES FOR SALT TOLERANCE THROUGH MULTI PARAMETERS EVALUATION I. MORPHOLOGICAL AND YIELD PARAMETERS
MOHAMMAD AKRAM, SHAFQAT FAROOQ1*, MUHAMMAD ASHRAF2,3, MOHAMMAD AFZAAL, RUBINA ARSHAD AND FAROOQ-E-AZAM4
Abstract: Salt tolerance potential of a newly developed wheat genotype (N-9760: V3) was assessed by comparing it with a known salt tolerant line (N-1073:V2) and a commercial cultivar (Inqlab: V1) using various growth parameters measured at the vegetative and maturity stages, The objectives were to know qualitative and quantitative tolerance status and possible utilization of the new genotype as well as to examine as to whether the parameters used to assess the tolerance at vegetative and maturity stages are affected differentially by various salinity levels. The experiment was conducted in pots using four salinity levels (EC 1.5, 5, 10 and 15 dS m-1). Root and shoot length, root and shoot fresh and dry weight, number of leaves and leaf area were recorded at the vegetative stage, while plant height, number of tillers, spike length and grain yield plant-1 were recorded at the maturity stage. Fresh weight of shoots, fresh and dry weights of roots, plant height, number of productive tillers and grain yield were least affected in V3 while shoot length, shoot fresh weight, number of leaves, leaf area and spike length were least affected in V2 by EC 15 dS m-1. Both genotypes appeared tolerant but all the parameters studied at both stages were affected differentially by salinity levels and genotypes hence, testing of every new genotype appeared essential.
Nuclear
Institute for Agriculture & Biology (NIAB), P.O. Box 128, Jhang Road
Faisalabad, Pakistan |
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