Murtaza, Naveed , Malik, Waqas , Qayyum, Abdul .
Genetic variability and heritability estimates for seedling traits in wheat (Triticum aestivum L.) genotypes under salt stress.
A set of wheat genotypes were assessed for tolerance to NaCl stress. The seeds of twenty five genotypes were sown under the normal laboratory conditions at University College of Agriculture Bahauddin Zakariyia University Multan Pakistan. Theses genotypes were evaluated for seedling traits under the salinity levels i.e. Controle, 100mM, 150mM and 200mM. Analysis of variance reveled the significant difference in the five seedling traits indicating the presence of notable genetic variability among the wheat genotypes. The NaCl salinity reduced the seedling shoot length, seedling root length, seedling shoot weight, seedling root weight and total biomass, but the most drastic effects were recorded on the seedling root length. On the basis of absolute salt tolerance the seedling root length data showed that the genotypes Naeem 82, Florkwa 2 and Inqalab 91 performed better than the all other genotypes and on the basis of means of relative salt tolerance genotypes BWP 2000, Falk, and Iqbal 2000 were found to be salinity tolerance. The estimate of broad sense heritability for seedling root length was found higher (0.999), suggested that the improvement for NaCl salinity tolerance is possible by exploiting the existing variability through selection breeding.
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1 - Bahauddin Zakaryia University, Plant Breeding and Genetics, University College of Agriculture, Bosan Road, Multan, Punjab, 000, Pakistan
2 - Bahauddin Zakaryia University, Multan, Pakistan, Plant Breeding and Genetics
Presentation Type: Plant Biology Abstract
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM