FERTILISATION GUIDELINES FOR THE TABLE GRAPE INDUSTRY

CHAPTER 5

FIGURE 12: Mg deficiency causes typical interveinal yellowing (chlorosis) on older leaves of white cultivars (left) and red colouration in red cultivars (right) (Photos: G. van der Merwe (left); D. Saayman (right).

FIGURE 13: Mg deficiency symptoms appear yellow for virus tested red grapevine cultivars (Photo: D. Saayman).

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