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HS1191: Nickel Nutrition in Plants

Figure 2. Nitrogen-fixing cowpea seedlings grown hydroponically with (left) or without (right) nickel and supplied with no inorganic nitrogen source. Without nickel, cowpea plants developed pronounced leaf tip necrosis and marked yellowing. These symptoms closely resemble those of nitrogen deficiency.

Credit: Reproduced by permission from Patrick Brown, University of California, Davis