Normal temperature
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Shoots stood erectly, 100% of leaves kept fresh and had a normal color
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Chilling (control)
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Both shoots and leaves began to wilt, about 20% of leaves had a normal color while 80% of them had large withered areas
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0.5 mM Put + chilling
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Both shoots and leaves began to wilt, about 60% of leaves had a normal color while 40% of them had large withered areas
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1.0 mM Put + chilling
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Shoots stood erectly, leaves began to soften slightly, 100% of leaves had a normal color
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1.5 mM Put + chilling
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Shoots stood erectly, leaves began to soften, about 80% of leaves had a normal color, 20% of them had small withered areas
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2.0 mM Put + chilling
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Shoots stood erectly, leaves began to soften, about 80% of leaves had a normal color, 20% of them had medium withered areas
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1.0 mM d-arg + chilling
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Shoots wilted, leaves softened, 80% of leaves had large withered areas
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