Respiration and photosynthesis are indispensable plant metabolic processes that are affected by elevated temperatures leading to disruption of the carbon economy of the plants. Increasing global temperatures impose yield penalties in major staple crops that are attributed to increased respiratory carbon loss, through higher maintenance respiration resulting in a shortage of non-structural carbohydrates and an increase in metabolic processes like protein turnover and maintenance of ion concentration gradients.
Crop | Experimental Temperature | Q10 Value | Reference |
---|---|---|---|
Marigold (Tagetes patula) | 20 °C (Control) 30 °C (Elevated) |
1.35–1.55 | [40] |
Barley (Hordeum vulgare) | 15 °C (Control) 28 °C (Elevated) |
3.00 | [41] |
Subterranean clover (Trifolium subterraneum) | 10 °C (Control) 35 °C (Elevated) |
1.85 | [42] |
Japanese knotweed (Reynoutria japonica) |
15 °C (Control) 25 °C (Elevated) |
1.90 | [43] |
Wheat (Triticum aestivum) | 15 °C (Control) 20 °C (Elevated) |
1.80 | [44] |
10 °C (Control-Night temperature) 21 °C (Elevated-Night temperature) |
1.97 | [45] |