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Fig. 4 | BMC Plant Biology

Fig. 4

From: Natural variation in tolerance to sub-zero temperatures among populations of Arabidopsis lyrata ssp. petraea

Fig. 4

Maximum efficiency of photosystem II (Fv/Fm) of Arabidopsis lyrata ssp. petraea seedlings (10 leaves) 2 days after sub-zero treatments. The Fv/Fm of inner leaves is defined as the central immature, inner whorl leaves and the outer leaves defined as the larger outer whorl mature leaves. Prior to treatment, plants were exposed to 2 °C for two days. The percent survival of the plants was assessed 16 days after exposure to sub-zero temperatures. n = 10 ± SE

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