Blooming in summer morning and closing at night, those bright-colored flowers have a flowering time for two or three months, attracting the tourists from all over the world to appreciate the flowers.

夏日早开晚闭，花色鲜艳，花期长达两三个月，吸引着世界各地的游客前来赏花。

Plant growth in space faces problems such as delayed flowering time, low seed setting rate, and decreased seed quality, and only a few crops like rape, wheat, and peas have completed experiments in space to obtain seeds.

在空间条件下，植物开花时间延迟、开花数目少、种子结实率低和种子质量下降等问题，目前只有油菜、小麦和豌豆少数几种作物在空间完成了从种子到种子的实验。