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EFFECT SALT STRESS AND TEMPERATURE IN C3AND C4 PLANTS | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 15, Issue 1, 2015, Pages 69-78 | ||
| Authors | ||
| Sura Jamal Khalaf; Shaker M. Saleh | ||
| Abstract | ||
| The current study was conducted to investigate the effect of salinity and thermal stress on the physiological ,anatomical and growth characters of three plants belonging to three families, which photosynthesis pathways different (C3,C4Pathways).The study conducted during 2011-2012 season in Laboratories of the college of Education and the fields of the college of Agriculture at the University of Tikrit . The three plants types which adopted in the study were the Sunflower Helinthus annuus (return to Asteraceae family),flax linum usitatissimim (return to linaceae family) these plants represents to C3plant group . and Millet Pancium miliaceam (belong to Poacea family) this plant return to C4 Plant group . Four concentrations of salinity Applied (Zero,0.5,1.0,2.0)% with three temperatures (15,25,35Co) in two experiment ,the first one is laboratory experiment and the second one was field experiments The results were :- 1. The anatomical characters of C3plants in flounced negatively significawat with increasing salinity concentration as compared to the control treatment ,The epidermis row cells ,cortex thickness and vascular cylinder were reduced by increasing the salinity consent rations .while the salinity conc .affected on C4plant was lesser on this characters . 2. All growth characters of C4 plants not affected when salinity and temperatures rises .while these characters in C3 plants (Sun flower and flax)were signifgant negative affected . 3. The Amino acid Prolin significantly rises in C3plants leafs when salinity conc. rise and temperature reduced . 4. The Proteins biosynthesis in millet plants(C4 group)was not affected whey salinity rises and temperatures reduced. | ||
| Keywords | ||
| Salt stress; Hight Temperature stress; plants | ||
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