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棉花是短日照植物,最适宜光照时间,因品种而言,一般约在8—12小时之间。作者和冯肇传研究证明:(1)脱字棉全日光照的每株结铃11.5个,而光照12小时的为23.5个。(2)康字棉的一个枝条施以短光照处理后,这被处理的局部,也能发生感应而开花结果,但未处理的部分,则不能开花结铃。(3)在康字棉生长前期的部分期间,施行短光照处理,其余时期使受自然光照,也能开花结果,惟不及全部期间处理的为好。值得注意的是棉花施行短光照处理后,它的效果能不能保持到后代? 1956年作者在全苏棉花科学
Cotton is short-day plants, the most suitable light time, due to breed, usually about 8-12 hours. The author and Feng Zhaochuan studies have shown that: (1) 11.5 cotton bolls per day in intact cotton, compared with 23.5 in 12 hours of light. (2) When a branch of a cotton flower is treated with a short light, the part that is processed may also induce induction and flowering. However, the untreated part will not be able to bear the bell. (3) During the early part of the development of Kum Kee cotton, the short-light treatment is applied, and the rest of the season is exposed to natural light, which can also bear fruit. However, it is better than the treatment for the entire period. It is noteworthy that the short-light treatment of cotton, its effect can not be maintained to future generations? In 1956 the author in the Soviet Union cotton science