Comparative sodium accumulation and its toxicity in mango, guava and ber.
Samra J. S.
Author Affiliation: Central Soil Salinity Research Institute, Karnal 132 001, India.
Indian Journal of Horticulture 42 : 178-183
Abstract : Leaf and soil samples were taken for analysis from mango, guava and ber [Ziziphus mauritiana] orchards at 8 different localities. The data are tabulated. Mangoes generally accumulated 2.5-3 times more Na than the other species, in both old and young leaves. Leaf scorching was common in mangoes, rare in guavas and practically absent in Z. mauritiana. The use of sodic water (adjusted to SAR of 22.5) for irrigation increased Na content in mango leaves by 3-5.5 times, compared with the use of normal water; no such increases were noted in the other 2 species irrigated similarly. All scorched mango leaves had high Na concentrations. Leaf analysis for diagnosis of specific ion toxicity is recommended.