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The use of shape memory metal in tunnel cultivation - tunnel cultivation of lettuce

Agriculture and Horticulture 67(1): 31-36
The use of shape memory metal in tunnel cultivation - tunnel cultivation of lettuce
Lettuce was grown in plastic tunnels with shape memory alloy springs used to raise the edges of the tunnel and provide ventilation. In 3 plots, the highest average temperatures for Jan. and Feb., measured at a height of 20 cm, were 26.2, 23.0 and 22.8 degrees C. With decreasing maximum temperatures, the number of outer leaves of lettuce decreased and the number of heart leaves increased.

Accession: 002530594

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