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菜豆为总状花序,蝶形花,花粉含量较少。蔓生种每株有20余花序,每花序4—12朵花不等,但结荚率很低,影响产量。
Beans are racemes, butterfly flowers, pollen content less. Manchu species per plant has more than 20 inflorescences, 4-12 flowers per inflorescence, but the pod rate is very low, affecting the yield.