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Two‐line system with phytohormone genic male‐sterile (PHGMS) line for hybrid seed production in rice. (a) PHGMS plant that can be restored by spraying MeJA. (b) Male‐sterile plant treated with MeJA restores fertility and sets seeds. (c) osopr7 PHGMS line used as a male‐sterile line in a cross for F1 hybrid seed production. (d) Wild‐type line that serves as pollinator for F1 hybrid seed production. [Colour figure can be viewed at wileyonlinelibrary.com]
