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Effect of Salinity Stress on Irradiated Callus and Plant Regeneration of Eight Sugarcane (Saccharum officinarum L.) Cultivars in Vitro | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 21, Issue 1, 2010, Pages 31-38 | ||
| Author | ||
| Eklass A. EL-Kaaby | ||
| Abstract | ||
| The effect of salinity stress under the levels (6.5,8.5,10.5, 12.5and15.5)dSm-1 on the irradiated callus induced from shoot tips of eight sugarcane cultivars (Cp81 -304, Cp72 -355 ,Cp70 -330 ,NCO -311 , Cp67-412,Cp170-310,Cp70-321andCp70-1133)were studied. Fresh and dry weight beside ion content and plant regeneration were used as indicators after 6 weeks. The results showed a significant difference among the sugarcane genotypes in callus fresh and dry weights. However, increasing salt concentration has resulted an increment of Na+ and Cl- under the salinity levels of 8.5, 10.5,12.5and15.5dSm-1compared to 6.5 dSm-1 . Concerning plant regeneration the results showed a higher shoots percentage at the level 8.5 dSm- . While there were no response at the level (12.5 and15.5) dSm-1. | ||
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