Growth and Chlorophyll Responses of Wheat Seedlings to Putrescine Under PEG-Induced Drought Stress
DOI:
https://doi.org/10.61326/actanatsci.v7i1.479Keywords:
Gacer, Chlorophyll, PEG-6000, Putrescine, Triticum aestivumAbstract
Wheat is one of the most important cereal crops worldwide due to its broad cultivation area, diverse uses, and economic importance. This study aimed to determine the shoot length, shoot fresh and dry weight, root length, root fresh and dry weight, chlorophyll a (chl a), chlorophyll b (chl b), total chlorophyll (chl a+b) amounts of wheat seedlings. The interactions of 5% polyethylene glycol (PEG-6000) and different putrescine (PUT) doses (0.5 mM and 1 mM) were examined in wheat (Triticum turgidum L. var. dicoccum, Gacer, Triticum aestivum L., Konya-2002) seedlings. Under the drought stress effect caused by PEG, two wheat varieties were negatively affected and a decrease in shoot length, fresh weight, dry weight and chlorophyll amounts was observed. In Gacer wheat, an increase in fresh root weight was observed under drought stress treated with PEG, while a decrease was observed in Konya-2002. Compared to the control, it was determined that the root length of Gacer wheat was less affected by the presence of PEG than that of Konya-2002. Compared to PEG, under the effect of PUT, increases were observed in shoot length, fresh weight, root length and fresh weight, chlorophyll a and total chlorophyll content in both wheat varieties. The applied 5% PEG-6000 created a drought stress effect in wheat and it was observed that PUT reduced this stress effect. When the parameters we used in our study are examined together, these findings suggest that Gacer wheat is more resilience to drought than Konya-2002.
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