Recent Topics Posters
bhutta, waqas .
Genetic Variability for salt tolerance within different geographic location of wheat (Triticum aestivum L.).
Salinity is one of the most damaging agro-environmental problems limiting plant growth and development on most parts of the world. The problem of salinity existed long before the human beings and start of agricultural practices and today it has become a very serious problem for crop production, particularly in arid and semi arid regions, which constitute about one third of the world land surface. In order to determine the magnitude of genetic variation for salinity tolerance in spring wheat and broad sense heritabilities estimated, calculated at different salinity levels. The 68 genotypes responded differently to increasing salinity levels in the growing medium. The response of different genotypes growth reduced to increased salinity levels were found with those originating from Australia exhibiting significantly increase salinity tolerance than other, which are originating from Pakistan. The plant vigour and salinity tolerance were found positive correlation measured by relative growth rates in non-saline environments. Various crop species have been examined for salt tolerance, which suggests that different genes may be controlling the character, from single major dominant or recessive genes. The purpose of this study was to determine genetic and phenotypic relationships between plant performances in the presence of NaCl at three developmental stages in wheat.These results suggest that improvement in salinity tolerance in the spring wheat is possible through selection and breeding.
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1 - botany, botany, botany, botany, faisalabad, punjab, 38040, Pakistan
Presentation Type: Recent Topics Poster
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM