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Typical symptoms of magnesium (Mg) deficiency in rice. (a) A rice plant cultured under Mg-deficient or Mg-sufficient conditions. The young mature leaves drooped under Mg deficiency. (b) Chlorosis of the leaf blade caused by Mg deficiency. (c) Schematic diagram of rice organs before tiller emergence. Leaf positions are numbered from oldest (L1) to newest (L7). Each leaf is composed of a leaf blade and leaf sheath except for L1.
