In vivo haploid induction in cauliflower, kale,and broccoli

<正>Brassica oleracea (family Brassicaceae) represents a group of economically valuable vegetables cultivated worldwide,including cabbage (var. capitata), cauliflower (var. botrytis),broccoli (var. italica), and kale (var. acephala). These crops are typically self-incompatible and require vernalization for flowering, thereby contributing to their long growth cycles.