Durum wheat (Triticum turgidum L. var. durum Desf.) is commonly grown in Mediterranean conditions, where temperature stress during grain filling can limit productivity. This research was performed to evaluate the effect of temperature during grain filling on dry matter and nitrogen dynamics in two Italian durum wheat varieties, Appio and Creso, grown with different nitrogen availabilities. The experiment compared two different temperature regimens, one within the normal range occurring during grain filling in Central Italy, the other within the normal range occurring in the southern regions of Italy (20/15 °C and 28/23 °C day/night, respectively). Plants were grown in pots outdoor until anthesis and afterward were placed in growth chambers. Results showed that nitrogen fertilization and post-anthesis temperature affected growth, accumulation and partitioning of dry matter and N in durum wheat which, in turn, modified grain yield and N content. Grain yield was better expressed at 20/15 °C, while grain protein concentration was favoured under the 28/23 °C temperature regime. Higher temperature promoted remobilization of dry matter and restrained current photosynthesis, but reduced grain yield, indicating that the loss of photosynthesis could not compensate for the gain from increased remobilization. Grain N content, on the contrary, was promoted under the higher temperature regime, as high temperature reduced N remobilization but did not inhibit root water and nitrogen uptake, given that no water shortage occur.
Alvaro, F., Isidro, J., Villegas, D., Garcia del Moral, L.F., Royo, C. 2008. Breeding effects on grain filling, biomass partitioning and remobilization in Mediterranean durum wheat. Agron. J. 100:361–370.
Arduini, I., Masoni, A., Ercoli, L., Mariotti, M. 2006. Grain yield, and dry matter and nitrogen accumulation and remobilization in durum wheat as affected by variety and seeding rate. Eur. J. Agron. 25:309–318.
Barneix, A.J. 2007. Physiology and biochemistry of source-regulated protein accumulation in the wheat grain. J. Plant Physiol. 164:581–590.
Blum, A. 1998. Improving wheat grain filling under stress by stem reserve mobilisation. Euphytica 100:77–83.
Borghi, B., Corbellini, M., Minoia, C., Palumbo, M., Di Fonzo, N., Perenzin, M. 1997. Effects of Mediterranean climate on bread-making quality. Eur. J. Agron. 6:145–154.
Ciaffi, M., Tozzi, L., Borghi, B., Lafiandra, D., Corbellini, M. 1996. Effect of heat shock during grain filling on the gluten protein composition of bread wheat. J. Cereal Sci. 24:91–100.
Dordas, C. 2009. Dry matter, nitrogen and phosphorus accumulation, partitioning and remobilization as affected by N and P fertilization and source-sink relations. Eur. J. Agron. 30:129–139.
Dupont, F.M., Altenbach, S.B. 2003. Molecular and biochemical impacts of environmental factors on wheat grain development and protein synthesis. J. Cereal Sci. 38:133–146.
Ehdaie, B., Waines, J.G. 2001. Sowing date and nitrogen rate effects on dry matter and nitrogen partitioning in bread and durum wheat. Field Crops Res. 73:47–61.
Ercoli, L., Masoni, A., Mariotti, M., Arduini, I. 2006. Dry matter accumulation and remobilization of durum wheat as affected by soil gravel content. Cereal Res. Commun. 34:1299–1306.
Ercoli, L., Masoni, A., Mariotti, M., Arduini, I. 2009. Accumulation of dry matter and nitrogen in durum wheat during grain filling as affected by temperature and nitrogen rate. Ital. J. Agron. 4:20–28.
Ercoli, L., Lulli, L., Mariotti, M., Masoni, A., Arduini, I. 2008. Post-anthesis dry matter and nitrogen dynamics in durum wheat as affected by nitrogen supply and soil water availability. Eur. J. Agron. 28:138–147.
Gibson, L.R., Paulsen, G.M. 1999. Yield components of wheat grown under high temperature stress during reproductive growth. Crop Sci. 39:1841–1846.
Guedira, M., Paulsen, G.M. 2002. Accumulation of starch in wheat grain under different shoot/root temperatures during maturation. Funct. Plant Biol. 29:495–503.
Hafsi, M., Akhter, J., Monneveux, P. 2007. Leaf senescence and carbon isotope discrimination in durum wheat (Triticum durum Desf.) under severe drought conditions. Cereal Res. Commun. 35:71–80.
ISTAT. Dati annuali sulle coltivazioni [web page]; http://www.istat.it/agricoltura/datiagri/coltivazioni/. [accessed 10 March 2009]
Jenner, C.F., Ugalde, T.D., Aspinall, D. 1991. The physiology of starch and protein deposition in the endosperm of wheat. Aust. J. Plant Physiol. 18:211–226.
Labuschagne, M.T., Elago, O., Koen, E. 2009. The influence of temperature extremes on some quality and starch characteristics in bread, biscuit and durum wheat. J. Cereal Sci. 49:184–189.
Moragues, M., Garcia del Moral, L.F., Moralejo, M., Royo, C. 2006. Yield formation strategies of durum wheat landraces with distinct pattern of dispersal within the Mediterranean basin II. Biomass production and allocation. Field Crops Res. 95:182–193.
Novaro, P., D’Egidio, M.G., Bacci, L., Mariani, B.M. 1997. Genotype and environment: their effect on some durum wheat quality characteristics. J. Genet. Breed. 51:247–252.
Pampana, S., Mariotti, M., Ercoli, L., Masoni, A. 2007. Remobilization of dry matter, nitrogen and phosphorus in durum wheat as affected by genotype and environment. Ital. J. Agron. 3:303–314.
Papakosta, D.K., Gagianas, A.A. 1991. Nitrogen and dry matter accumulation, remobilization, and losses for Mediterranean wheat during grain filling. Agron. J. 83:864–870.
Steel, R.G.D., Torrie, J.H., Dickey, D.A. 1997. Principles and Procedures of Statistics: A Biometrical Approach. McGraw-Hill, New York, USA.
Tahir, I.S.A., Nakata, N. 2005. Remobilization of nitrogen and carbohydrate from stems of bread wheat in response to heat stress during grain filling. J. Agron. Crop Sci., 191:106–115.
Triboi, E., Triboi-Blondel, A.M. 2002. Productivity and grain or seed composition: a new approach to an old problem — invited paper. Eur. J. Agron. 16:163–186.
Wardlaw, I.F., Moncur, L. 1995. The response of wheat to high temperature following anthesis. I. The rate and duration of kernel filling. Aust. J. Plant Physiol. 22:391–397.
Zadoks, J.C., Chang, T.T., Konzak, C.F. 1974. A decimal code for the growth stages of cereals. Weed Res. 14:415–421.
Communicated by P.S. Baenziger
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Ercoli, L., Arduini, I., Mariotti, M. et al. Post-anthesis dry matter and nitrogen dynamics in durum wheat as affected by nitrogen and temperature during grain filling. CEREAL RESEARCH COMMUNICATIONS 38, 294–303 (2010). https://doi.org/10.1556/CRC.38.2010.2.16