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苍耳子
cocklebur
常考释义
n. 苍耳子;苍耳属植物;芒刺类杂草
Inspired by the amazing sticking power of the cocklebur seed in 1948, George Mestral invented Velcro.
从苍耳的神奇粘性中获得启发,乔治麦斯垂尔于1948年发明了维可牢尼龙搭扣。
Plant scientists can induce flowering in the cocklebur by exposing leaves to long nights (longer than its 8.5 hour critical period) in a special chamber, while the rest of the plant continues to experienceshort nights.
植物科学家可以通过将苍耳的叶子放入特定的容器中,人工营造出长夜状态(夜晚时间长于苍耳8.5个小时的临界暗期),来诱导苍耳开花,而植物的其他部分仍然处于短夜的环境状态下。
来源于:阅读EXTRA4 P3Thus spinach is classified as a short night plant because it flowers only if the night is shorter than eleven hours (its critical period), and the cocklebur is a long night plant because it flowers only if an uninterrupted darkness lasts more than 8.5 ho
因此,菠菜是一种短夜植物,因为它只有在黑夜的时间短于11个小时(它的临界暗期)时才会开花,而苍耳是一种长夜植物,因为它只会在不间断的黑暗时长超过8.5小时的时候才会开花。
来源于:阅读EXTRA4 P3以上图片仅供学习交流使用,版权归原作者所有,如有侵权,请与我方联系