The average temperature over the next 14 days is forecast to be 22Â°C (72Â°F) and there will be 3 days of sunshine. The average for October is 18Â°C (64Â°F) in Salou. The warmest day over the next 25 days in Salou is forecast to be 23rd October at 26Â°C (79Â°F) and the warmest night on 24th October at 18Â°C (64Â°F).
Insect growth regulator. An insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used as insecticides to control populations of harmful pests, such as cockroaches or fleas. Contents.
Plant Hormones and Plant Growth Regulators. Another factor in plant growth is the influence of plant hormones. Hormones are chemicals produced by plants that regulate the growth processes. Plant growth regulators are chemicals applied by a horticulturist to regulate plant growth.igure 4. Geotropism â Under the influence of gravity, auxins accumulate in the lower side of a horizontal stem, causing cells to enlarge faster, turning the stem upright. Figure 5. Phototropism The auxin concentration on the shaded side stimulates cell elongation, turning the stem to the sun.