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. 2015 Jul 15;10(7):e0132991. doi: 10.1371/journal.pone.0132991

Fig 2. Alteration of chlorophyll content of bermudagrass after treated with nitric oxide (NO) donor and inhibitor under cold stress.

Fig 2

Experiments were repeated for three times, and means were average values of chlorophyll content. Independent-samples t test was used to determine statistical differences. Bars show standard deviation. Different letters indicate statistical difference significance at P < 0.05 among the treatments. CK was control that treated with sterilized water, SNP was plant treated with SNP, P+L was plant treated with PTIO and L-NAME. FW was fresh weight.