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Fig. 7 | BMC Plant Biology

Fig. 7

From: Exogenous spermidine is enhancing tomato tolerance to salinity–alkalinity stress by regulating chloroplast antioxidant system and chlorophyll metabolism

Fig. 7

Effect of exogenous Spd on SOD activity in tomato seedlings. CK, 1/2 Hoagland’s solution; S, 75 mM saline–alkaline solution (NaCl:Na2SO4:NaHCO3:Na2CO3 = 1:9:9:1); SS, sprayed with 0.25 mM Spd and treated with 75 mM saline–alkaline solution. a represents cv. Zhongza No. 9; b represents cv. Jinpengchaoguan

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BMC Plant Biology

ISSN: 1471-2229

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