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Current IssueEditorial BoardOnline First ArticlesArchive

Research Article

volume 37 issue 3 (september 2017) : 221-225,   Doi: 10.18805/asd.v37i03.8990

Variability in gas exchange attributes of wheat RILs subjected to high temperature stress

S
Sunita
R
Renu Munjal
1Department of Genetics and Plant Breeding Chaudhary Charan Singh Haryana Agricultural University, Hisar-125 004, Haryana, India
Cite article:- Sunita, Munjal Renu (2017). Variability in gas exchange attributes of wheat RILs subjected to high temperature stress. Agricultural Science Digest. 37(3): 221-225. doi: 10.18805/asd.v37i03.8990.

ABSTRACT

High temperature above the optimum has a drastic effect on the stomatal activity and gaseous exchange which ultimately affect the yield and yield attributing traits. In this study, the Net photosynthetic rate (An), stomatal conductance (gs), transpiration rate (E), and intrinsic water use efficiency (iWT) on flag leaves of 100 recombinant inbred lines of bread wheat derived from the cross of WH1021 (heat-tolerant) and WH711 (heat-sensitive) were evaluated. Recombinant inbred lines and both parents were assessed for various gas attributes under two sowing dates i.e., normal (17.11.2015) and late sowing (27.12.2015). The temperature persisted normal from December, 2015 to February, 2016 and there was a consistent rise in temperature in the last week of March. Measurements were made at anthesis and 10 days after anthesis. Average An, E, gs and iWT decreased as the temperature increase. A contrasting difference was observed in timely sown and late sown at 10 days after anthesis for photosynthetic rate and transpiration  rate. Decrease in stomatal conductance and water use efficiency was found with delayed sowing and high temperature. There results may prove useful in the selection of physiologically efficient heat-tolerant genotypes with higher rate of photosynthesis.

REFERENCES

  1. Ahmed, M., Hassan, F.U., Aslam, M., Akram, M.N., Aslam, M.A. (2010). Photosynthesis of spring wheat (Triticum aestivum) in rainfed ecology of Pakistan. Afri. J. Biotech, 9:7495-7503.
  2. Al-Khatib, K., Paulsen, G.M. (1990). Photosynthesis and productivity during high temperature stress of wheat genotypes from major world regions. Crop Sci., 30:1127–1132.
  3. Bahuguna, R.N., Chaturvedi, A.K., Pal, M. (2016). Physiological traits for improving high temperature stress tolerance in rice. Indian Journal of Plant Physiology, 21: 420.
  4. Harding, S.A., Guikema, J.A., Paulsen, G.M. (1990). Photosynthetic decline from high temperature stress during maturation of wheat: I. Interaction with senescence processes, Plant Physiol., 92:648-653
  5. Mullarkey, M., Jones, P. (2000). Isolation and analysis of thermotolerant mutant in wheat. Jour. of Expt. Botany, 51:139–146.
  6. Paulsen, G.M. (1994). High temperature responses of crop plants. In: K.J. Boote, I.M. Bennet, T.R. Sinclair & G.M. Paulsen (Eds.), Physiology and Determination of Crop Yield, pp. 365–389. American Society of Agronomy, Madison, WI. 
  7. Reynolds, M. P., Quilligan, E., Aggarwal, P.K., Bansal, K.C., Cavalieri, A.J., Chapman, S.C., et al., (2016). An integrated approach to maintaining cereal productivity under climate change. Global Food Security, 8: 9-18.
  8. Ray, D. K., Mueller, N. D., West, P. C., Foley, J. A. (2013). Yield trends are insufficient to double global crop production by 2050. PLoS ONE 8.
  9. Tambussi, E.A., Bort, J., Guiamet, J.J., Nogués, S., Araus, J.L. (2007). The photosynthetic role of ears in C3 cereals: metabolism, water use efficiency and contribution to grain yield. Crit Rev Plant Sci, 26:1-16.
  10. Talukder, A.M., McDonald, G.K., Gill, G.S. (2014). Effect of short-term heat stress prior to flowering and early grain set on the grain yield of wheat. Field Crops Research, 160: 54–63.
  11. Wahid, A., Gelani, S., Ashraf, M., Foolad M.R. (2007). Heat tolerance in plants: an overview. Environ. Exp. Bot. 61:199-223. 
  12. Zhang, B., Liu, W., Chang, S.X., Anyia, A.O. (2010). Water deficit and high temperature affected water use efficiency and arabinoxylan concentration in spring wheat. J. Cereal Sci., 52:263-269
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    Research Article

    volume 37 issue 3 (september 2017) : 221-225,   Doi: 10.18805/asd.v37i03.8990

    Variability in gas exchange attributes of wheat RILs subjected to high temperature stress

    S
    Sunita
    R
    Renu Munjal
    1Department of Genetics and Plant Breeding Chaudhary Charan Singh Haryana Agricultural University, Hisar-125 004, Haryana, India
    Cite article:- Sunita, Munjal Renu (2017). Variability in gas exchange attributes of wheat RILs subjected to high temperature stress. Agricultural Science Digest. 37(3): 221-225. doi: 10.18805/asd.v37i03.8990.

    ABSTRACT

    High temperature above the optimum has a drastic effect on the stomatal activity and gaseous exchange which ultimately affect the yield and yield attributing traits. In this study, the Net photosynthetic rate (An), stomatal conductance (gs), transpiration rate (E), and intrinsic water use efficiency (iWT) on flag leaves of 100 recombinant inbred lines of bread wheat derived from the cross of WH1021 (heat-tolerant) and WH711 (heat-sensitive) were evaluated. Recombinant inbred lines and both parents were assessed for various gas attributes under two sowing dates i.e., normal (17.11.2015) and late sowing (27.12.2015). The temperature persisted normal from December, 2015 to February, 2016 and there was a consistent rise in temperature in the last week of March. Measurements were made at anthesis and 10 days after anthesis. Average An, E, gs and iWT decreased as the temperature increase. A contrasting difference was observed in timely sown and late sown at 10 days after anthesis for photosynthetic rate and transpiration  rate. Decrease in stomatal conductance and water use efficiency was found with delayed sowing and high temperature. There results may prove useful in the selection of physiologically efficient heat-tolerant genotypes with higher rate of photosynthesis.

    REFERENCES

    1. Ahmed, M., Hassan, F.U., Aslam, M., Akram, M.N., Aslam, M.A. (2010). Photosynthesis of spring wheat (Triticum aestivum) in rainfed ecology of Pakistan. Afri. J. Biotech, 9:7495-7503.
    2. Al-Khatib, K., Paulsen, G.M. (1990). Photosynthesis and productivity during high temperature stress of wheat genotypes from major world regions. Crop Sci., 30:1127–1132.
    3. Bahuguna, R.N., Chaturvedi, A.K., Pal, M. (2016). Physiological traits for improving high temperature stress tolerance in rice. Indian Journal of Plant Physiology, 21: 420.
    4. Harding, S.A., Guikema, J.A., Paulsen, G.M. (1990). Photosynthetic decline from high temperature stress during maturation of wheat: I. Interaction with senescence processes, Plant Physiol., 92:648-653
    5. Mullarkey, M., Jones, P. (2000). Isolation and analysis of thermotolerant mutant in wheat. Jour. of Expt. Botany, 51:139–146.
    6. Paulsen, G.M. (1994). High temperature responses of crop plants. In: K.J. Boote, I.M. Bennet, T.R. Sinclair & G.M. Paulsen (Eds.), Physiology and Determination of Crop Yield, pp. 365–389. American Society of Agronomy, Madison, WI. 
    7. Reynolds, M. P., Quilligan, E., Aggarwal, P.K., Bansal, K.C., Cavalieri, A.J., Chapman, S.C., et al., (2016). An integrated approach to maintaining cereal productivity under climate change. Global Food Security, 8: 9-18.
    8. Ray, D. K., Mueller, N. D., West, P. C., Foley, J. A. (2013). Yield trends are insufficient to double global crop production by 2050. PLoS ONE 8.
    9. Tambussi, E.A., Bort, J., Guiamet, J.J., Nogués, S., Araus, J.L. (2007). The photosynthetic role of ears in C3 cereals: metabolism, water use efficiency and contribution to grain yield. Crit Rev Plant Sci, 26:1-16.
    10. Talukder, A.M., McDonald, G.K., Gill, G.S. (2014). Effect of short-term heat stress prior to flowering and early grain set on the grain yield of wheat. Field Crops Research, 160: 54–63.
    11. Wahid, A., Gelani, S., Ashraf, M., Foolad M.R. (2007). Heat tolerance in plants: an overview. Environ. Exp. Bot. 61:199-223. 
    12. Zhang, B., Liu, W., Chang, S.X., Anyia, A.O. (2010). Water deficit and high temperature affected water use efficiency and arabinoxylan concentration in spring wheat. J. Cereal Sci., 52:263-269
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