Template-Type: ReDIF-Article 1.0 Author-Name:Syed Hidayat Yar, Hussan Ara Begum, Naseem Rafiq, Syed Maqsood Ali, Sami Ullah, Muhammad Musa, Abdul Majid, Rahid Khan, Jawad Ali Author-Email:hussanara.begum@gmail.com Author-Workplace-Name:Department of Botany, Abdul Wali Khan University Mardan, Khybr Pakhtunkhwa, Pakistan, Department of Botany, University of Peshawar, Khybr Pakhtunkhwa, Pakistan, Department of Zoology, Abdul Wali Khan University Mardan, Khybr Pakhtunkhwa, Pakistan, College of Agricultural Science and Engineering, Hohai University, Nanjing, 210098, China, Center for Agricultural Resources and Research, IGDB, University of Chinese Academy of Sciences Title:Effects of Polyethylene Glycol(PEG) Simulated Drought Stresson Physio-Agronomic Characteristicsin Myhco Variety of Sorghum BicolorL Abstract:The present study was aimed at determining the differential interactive effects of Ca/Mg quotient and PEG-simulated drought in Sorghum bicolorat the vegetative stage.Sorghum bicolor collected variety Myhco from Persabaq Nowshera were sown in earthen pots (lower inside diameter, 18cm upper inner diameter, 20 cm height and 2 cm thickness) filled with 2 kg of air-dried soil and silt (2:1) having pH, moisture content and field capacity in triplicates in the green house of the Department of Botany, University of Peshawar in 2019. The designed experiment contains seven treatments each having three replicates, among these treatments first three are control, the second three are treated Ca/Mg quotient 4+PEG0.6 Ca/Mg quotient 4+PEG0.2, Ca/Mg quotient 2+PEG0.6, Ca/Mgquotient 2+PEG0.2, Ca/Mg quotient 0.18+PEG0.6 Ca/Mg quotient 0.18+PEG0.2, while the last three treatments are treated Ca/Mg quotient 0.18+PEG0.2. Conclusions We conclude that there is a reduction in the agronomy,i.e., leaf area, leaf fresh and dry weight,and asimilar reduction also occurred with all other vegetative parts. There is a clear difference between control and PEG drought,and a greaterreduction is observed in 0.6 MPa drought. The biochemical characters were also affected in the same manner;a clear reduction was observed in chlorophyll, sugar,and protein, and occurred while the Ca/Mg quotient hadno significant effect on Sorghum bicolorL.in Varity myco. Keywords:Calcium, Chlorophyll, Magnesium, Protein,Sorghum BicolorL Journal: International Journal of Innovations in Science and Technology Pages:2117-2125 Volume:7 Issue:3 Year: 2025 Month:August File-URL:https://journal.50sea.com/index.php/IJIST/article/view/1569/2234 File-Format: Application/pdf File-URL:https://journal.50sea.com/index.php/IJIST/article/view/1569 File-Format: text/html Handle: RePEc:abq:IJIST:v:7:y:2025:i:3:p:2117-2125