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Chemical and Biological Technologies in Agriculture
Fig. 3 | Chemical and Biological Technologies in Agriculture

Fig. 3

From: Nano-zinc and plant growth-promoting bacteria is a sustainable alternative for improving productivity and agronomic biofortification of common bean

Fig. 3

Grain yield of common bean in 2019 (A) and 2020 (B) cropping seasons as a function of foliar nano-Zn application and co-inoculations of plant growth-promoting bacteria. The upper case letters are used for the interactions of PGPBs inoculations within each dose of foliar nano-Zn application, whereas lower case letters are used for the interaction of foliar nano-Zn doses within each inoculation treatment. The identical alphabetic letters are statistically similar with each other as analyzed by Tukey test for foliar Zn doses (p < 0.05) and Scott–Knott test for PGPBs inoculations (p < 0.05) in 2019 and 2020, respectively. Error bars indicate standard error of the means (n = 4 replicates)

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