New Quantis gives relief to heat-stressed potatoes

T A Piccaver Long Sutton 25 June 2020

SYNGENTA has launched its first biostimulant in potatoes, Quantis, that has been shown to effectively help crops cope with the impacts of heat stress.

Following the UK’s most extensive research field trial of a biostimulant, analysis of the huge data resource has revealed significantly increased yield for crops that had been under prolonged or extreme heat stress.

The results indicate that Quantis can have an important role in potato agronomy programmes from tuber initiation, through the crop bulking phase. Its value is even more apparent with the increasing incidence and severity of heat events in the UK, reported Syngenta Head of Technical Dave King, pictured right.

Quantis delivers a readily available blend of organic carbon, amino acids, potassium and calcium that

supplement the plant’s own mole-cular cell function, he pointed out.

“Acting directly as an anti-oxidant it can help to counter reactive oxygen species (ROS – free radicals) that can cause significant damage, particularly within the foliage if leaves get too hot,” advised Mr King.

“It is believed to activate and enhance the potato plant’s natural capability to adapt to heat stress, to prevent damage.”

He explained that the strength of Quantis lies in its relatively high proportion of short chain carbon molecules, which are particularly effective at helping the plant to prevent the creation of ROS during periods of stress. Furthermore, it helps with the scavenging of accumulated ROS to minimise their adverse effects.

“By filling the organic carbon gap when a plant comes under stress it can act to minimise its effects,” he advised. Quantis also contains a level of amino acids that can help to protect plant structures from nitrogen and protein degradation when under stress.

Furthermore, Quantis also provides osmoprotectant regulators to help plants manage cell osmosis, which could help contribute to the heat stress mitigation.

Whilst other biostimulants, typically with higher amino acid content, may have an earlier role for plant development, the greater understanding of how Quantis works has highlighted its position for stress prevention through the season, he advocated.

Quantis will be available for use in the 2021 season.


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