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Indoor growing is "bringing back failed varieties"qrcode

−− Urban farms are allowing Rijk Zwaan to grow varieties that fell short in past crop trials due to weak disease resistance

Apr. 11, 2017

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Apr. 11, 2017

Rijk Zwaan
Netherlands  Netherlands
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Indoor growing with LEDs is allowing salad breeders to bring back high-performing varieties that didn't have strong enough disease resistance in crop trials, a city farming expert has revealed.

Indoor growing at facilities such as GrowUp Urban Farms in London has allowed plant breeder Rijk Zwaan to reinstate certain salad varieties and boost product quality and consistency, said Philips’ programme manager for city farming, Roel Jansson.

“Growing in indoor climate cells means there are no pests, no weather changes, no bugs,” he said. “Everything that was developed by Rijk Zwaan in previous years but maybe didn’t have enough disease resistance can be used indoors because here we don’t have disease. We can get better taste, better colouration, faster growth.”

Philips has a programme with fellow Dutch company Rijk Zwaan to screen different varieties to find out which are best for indoor growing and which LED light spectrum they respond best to.

While he accepts that indoor growing will never fully replace traditional salad outdoors or in polytunnels, he sees big potential for vertical growing in fresh-cut pre-packed salads.

“Indoor growing is the future for growing processed produce like fresh-cut pre-packed salads because you can grow bug-free and with stable nitrates,” he said. “You can predict shelf life, texture, quality because you always get the same product.”

In wholehead lettuce, Janssen believes opportunities are more limited since consumers are already used to washing the product before eating it.

“In Europe we could produce a full head of lettuce that you don’t need to wash anymore,” he said, “but people are used to washing it anyway so the added value would probably be limited.”

He added: “There is already a market [for wholehead lettuce you don’t have to wash] in North America and Asia Pacific but in countries with really high horticultural standards like the UK, Netherlands and Scandinavia I don’t think we would easily replace a greenhouse.”

Produce from indoor farms is typically twice the price, costing around the same as organic produce, however this could reduce in future as LEDs become cheaper and more efficient and higher-yielding varieties are developed.


Source: fruitnet.com

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