Growth Factors III. Temperature

The temperature is another of the most influential factors in the growth and development of sports surfaces. The greens of species C3 The ideal range for leaf growth is between 18 and 24°C, but root growth is optimal between 10 and 18°C (Beard, 1973). It is also possible to estimate the expected growth according to monthly mean temperatures, using the so-called Growth Potential (Growth Potential), introduced by Stowell. L, (Pace Turf).

Temperature will influence the choice of different species appropriate for each location.

C3 species such as Agrostis stolonifera, with average temperature requirements of around 19.5ºC in temperate zones, or C4 species such as Cynodon Dactylon, with average temperature requirements of around 30.5ºC in tropical zones, will be used.

Both the water absorption as of nutrients is produced by the moisture gradient from the roots to the leaf stomata, a process driven by the evapotranspirationwhich is temperature-dependent.

The microbiological development is also temperature-dependent, with some organisms proliferating and others proliferating (e.g. diseases caused by mushroomsbacterial infections, etc.) depending on it.

Other abiotic processesSummer Bentgrass Decline, such as summer stress due to high temperatures, causes root loss and death, deficiency in the photosynthesis process and low physiological activity, which occurs in Agrostis greens due to high temperatures. volumetric moisture contents (VWC) that displace oxygen and by the presence of high daytime (>35ºC) and nighttime (>25ºC) temperatures, Huang. B et al.

It has been proven through the USGA's Turfgrass Environmental Research On Line group that night cooling is the best solution for high temperature stress.

The tool POGOwith its humidity, temperature and conductivity probes, offers an extraordinary capacity to anticipate these phenomena that are so detrimental to our greens.