Arbuscular Mycorrhizal Fungi Enhance Biomass Growth, Mineral Content, and Antioxidant Activity in Tomato Plants under Drought Stress

Table 1

Quality control (QC) for the determination of chemical properties, photosynthetic pigments, antioxidants, and minerals.

Chemical properties
Samples	pH	% nitrogen (N)	Phosphorus (P) (mg·kg^−1)	Potassium (K) (meq^−100g)
Soils	7.34	0.086	9.6	0.28
Quality control
	Container	Sampling and transport	Maximum holding time	Storage	Comments
Chemical properties of soils such as % nitrogen (N), phosphorus (P), and potassium (K)	Polyethylene Ziploc bag	Transported under the icebox	7 days	Stored in the refrigerator at 4°C	Samples were air-dried
Photosynthetic pigments and antioxidants of tomato leaves	Polyethylene Ziploc bag	Transported under the icebox	7 days	Stored in the refrigerator at −20°C	—
Minerals (Ca, Fe, K, Mg, and Na) of tomatoes	Polyethylene Ziploc bag	Transported under the icebox	—	Digested samples stored in a refrigerator at 4°C	—