Climate change and Australian wheat yield

Godden, David P.; Batterham, Robert L.; Drynan, Ross G.

doi:10.1038/35054

Cited by 26 publications

(15 citation statements)

References 1 publication

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“…Climate is the major uncontrollable factor that influences crop yield [17]. There are five climatic variables available which include cloud cover, diurnal temperature range, precipitation, temperature and vapours pressure [18].…”

Section: Factors Affecting Wheat Growthmentioning

confidence: 99%

Impacts of Heat Stress on Wheat: A Critical Review

Iqbal¹,

Raja²,

Yasmeen³

et al. 2017

Adv Crop Sci Tech

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A brief review is given of investigations on stress-induced alterations in the yield of different biochemical contents in wheat. Wheat is major cereal crop for fulfilling the calories demands of growing population. Alterations in the worldwide climate are predicted to have critical sentence for crop production. Abiotic stresses such as heat and drought are major abiotic stresses restraining crop production. Heat stress reduces wheat growth by upsetting various physiological and biochemical processes and the developmental stage of the plant is critical in demonstrating the vulnerability of various species and cultivars subjected to high temperature. Heat stress did not affect the protein content but there is strong correlation between leaf nitrogen content and grain protein content. Induction of HSPs seems to be the universal response and adaptation to temperature stress. The synthesis of HSPs is believed to play significant role either in preventing or minimizing the adverse effects of high temperature both at molecular and cellular levels. Wheat has the tendency to adopt diverse types of responses to temperature stress as well as a heat shock by developing thermo-tolerance for the enhancement of the grain quality and yield.

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Section: Factors Affecting Wheat Growthmentioning

confidence: 99%

Impacts of Heat Stress on Wheat: A Critical Review

Iqbal¹,

Raja²,

Yasmeen³

et al. 2017

Adv Crop Sci Tech

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“…In this study, the effects of some other factors, such as photoperiod (Brooking and Jamieson, 2002), carbon dioxide fertilization (Lobell and Field, 2008) and fertilizer application (Godden et al, 1998) on winter wheat yields were not considered. The sensitivity of winter wheat yields to climate factors in six major Köppen-Geiger climate zones was also investigated.…”

Section: Eurostat Crop Yield Statistics and Climate Datamentioning

confidence: 99%

Responses of Winter Wheat Yields to Warming-Mediated Vernalization Variations Across Temperate Europe

Liu

et al. 2017

Front. Ecol. Evol.

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Rapid climate warming, with much higher warming rates in winter and spring, could affect the vernalization fulfillment, a critical process for induction of crop reproductive growth and consequent grain filling in temperate winter crops. However, regional observational evidence of the effects of historical warming-mediated vernalization variations on temperate winter crop yields is lacking. Here, we statistically quantified the interannual sensitivity of winter wheat yields to vernalization degree days (VDD) during 1975-2009 and its spatial relationship with multi-year mean VDD over temperate Europe (TE), using EUROSTAT crop yield statistics, observed and simulated crop phenology data and gridded daily climate data. Our results revealed a pervasively positive interannual sensitivity of winter wheat yields to variations in VDD (γ VDD ) over TE, with a mean γ VDD of 2.8 ± 1.5 kg ha −1 VDD −1 . We revealed a significant (p < 0.05) negative exponential relationship between γ VDD and multi-year mean VDD for winter wheat across TE, with higher γ VDD in winter wheat planting areas with lower multi-year mean VDD. Our findings shed light on potential vulnerability of winter wheat yields to warming-mediated vernalization variations over TE, particularly considering a likely future warmer climate.

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“…Nicholls (1997) reported that a decrease in diurnal temperature range (DTR) during the period 1952-1992 contributed to an increase in Australian wheat yields, possibly due to the increase in average minimum temperature and consequently fewer frosts, although Nicholl's use of climatic variables averaged across the continent, rather than just wheat growing areas, has been questioned by Gifford et al (1998). Godden et al (1998) also questioned the yield detrending method used by Nicholls and whether it properly accounted for non-climatic factors, such as the location of wheat plantings. In other studies, Lobell (2007) used Food and Agriculture Organization (FAO) of the United Nations yield statistics for wheat along with gridded climate datasets and found a negative correlation between DTR and wheat yield in both Canada and Australia.…”

Section: Introductionmentioning

confidence: 99%