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Effect of root zone warming, flow rate and propagation system on tomato crop performance in NFT

, : Effect of root zone warming, flow rate and propagation system on tomato crop performance in NFT. Acta Horticulturae (98): 45-52

The effect of heating the nutrient solution to 25 deg C was studied on an early tomato crop (cv. Grenadier) grown in recirculation solution at 2 night air temperatures (NAT), 13 deg and 5 deg. Root zone warming (RZW) increased shoot vigour and root size, particularly at the lower NAT. Early yield was not affected but after 10 weeks of picking there was a significant yield increase from solution heating.

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