Trials show Seasol assists frost resistance
HOW do the team at Seasol International know that its products can help improve plant resistance to frost?
Seasol International agronomist Peter Brown said it is due to the early laboratory work undertaken by the University of Tasmania which demonstrated that Seasol improved frost resistance by increasing the concentration of the sap inside plant cells, which in turn lowers the temperature at which they freeze.
“Due to the highly variable and unpredictable nature of frosts, results from field research are very hard to obtain,” Mr Brown said.
“However, early laboratory work showed that Seasol was effective for increasing frost resistance.
“While not a ‘cure all’ for complete frost protection, Seasol is a fast-acting way to increase plant resistance to frost, but it still needs a certain amount of time to build this effect.”
He added that the damage caused by a frost depends on more than just the minimum temperature, but that is the reason the experts talk about frost resistance.
“Increased cell-sap concentration helps the plant to better resist the stress that accompanies exposure to low temperatures,” Mr Brown said.
“But the most important advice is don’t wait.
“Start applications as early in the season as possible or what is even better would be at post-harvest the season before.”
According to Mr Brown the best strategy is to use application timings and rates that are focused on achieving this benefit – soil application prior to budburst and a foliar spray as soon as there is sufficient leaf area available.
For more information contact Seasol International on 1800 335 508.