Department of Crop Science, University of Ghana, Legon, Accra, Ghana.
Plant Physiol. 1969 Dec;44(12):1749-51. doi: 10.1104/pp.44.12.1749.
Urena lobata L. is a qualitative short-day plant with a critical dark period of about 12 hr. A minimum of 12 short days are required for floral initiation. Gibberellic acid (GA(3)) sprayed onto the leaves promoted flowering. The growth retardant, (2-chloroethyl)-trimethylammonium chloride (CCC) markedly inhibited flowering and stem elongation. This inhibition was reversed by subsequent application of GA(3).
三裂叶野葛（Urena lobata L.）是一种定性短日照植物，临界暗期约为 12 小时。短日照处理 12 天是花诱导所必需的。将赤霉素（GA(3)）喷洒到叶片上可促进开花。生长延缓剂（2-氯乙基）-三甲基氯化铵（CCC）明显抑制开花和茎伸长。这种抑制作用可通过随后施加 GA(3)来逆转。
