Study of some changes in cellular adaptation of forage sorghum genotypes during stress

Ghahremani, Masoumeh; Ebadi, Ali; Parmoon, Ghasem; Jahanbakhsh, Soodabeh

doi:10.22059/jci.2015.54384

Document Type : Research Paper

Authors

¹ M.Sc. Graduated of Agronomy, Department of Agronomy, Faculty of Agriculture University of Mohaghegh Ardabili, Iran.

² Associate Professor, Department of Agronomy, Faculty of Agriculture, University of Mohaghegh Ardabili. Iran.

³ Ph.D. Student, Department of Agronomy, Faculty of Agriculture, University of Mohaghegh Ardabili, Iran.

⁴ Assistant Professor, Department of Agronomy, Faculty of Agriculture, University of Mohaghegh Ardabili, Iran.

https://doi.org/10.22059/jci.2015.54384

Abstract

This study was carried out to evaluate the changes in some important cell parameters under water limitation in sorghum genotypes. A factorial experiment was conducted based on randomized completely design in greenhouse, in University of Mohaghegh Ardabili in 2014. Treatments were water stress at levels of 85, 65, 45 and 25 percent field capacity in and three genotypes of forage sorghum (KFS2, KFS6 and KFS17). The results showed that water stress reduced the osmotic potential, relative water content, cell membrane stability redecase in one percent, also the amount of potassium, calcium, phosphorus, while increased sodium content and finaly decreased biomass. Interaction between stress and genotype only proline, soluble sugars, cell membrane stability, relative water content and biomass was statistical difference. KFS2 genotype had the highest amounts of proline, soluble sugars and nutrients, higher osmotic potential, relative water content, cell membrane stability and biomass in most severe stress levels (25 percent of field capacity). The highest contribution between proline and calcium amount for osmotic potential and membrane stability prediction. These factors also play an important role in biomass production. In general we can say the genotypes used for different mechanisms to deal with stress, however, the genotypes which use faster and less expensive methods are able to have greater tolerance to stress and will a higher yield produce.

Keywords

20.1001.1.83372008.1394.17.3.15.1

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Journal of Crops Improvement

Study of some changes in cellular adaptation of forage sorghum genotypes during stress

References

References

Volume 17, Issue 3 - Serial Number 3
October 2015
Pages 755-773

Study of some changes in cellular adaptation of forage sorghum genotypes during stress

References

References

Volume 17, Issue 3 - Serial Number 3October 2015Pages 755-773

Volume 17, Issue 3 - Serial Number 3
October 2015
Pages 755-773