Effect of photoperiod on the development of inflorescences in white Guinea yam (Dioscorea rotundata)

Shiwachi, H.; Ayankanmi, T.G.; Asiedu, Robert

Effect of photoperiod on the development of inflorescences in white Guinea yam (Dioscorea rotundata)

Autores

Shiwachi, H.

Ayankanmi, T.G.

Asiedu, Robert

Editor

Wiley

Descripción

In experiments in 2001 to 2003, 50-day-old plants of four varieties of white Guinea yam (D. rotundata) were exposed to 10 h (short-day) day length for 15 days, 14 h for 30 days or constant 24 h, with natural day length as the control. Under natural day length the male varieties flowered earlier than the female. Short day-length delayed and reduced the intensity of development of inflorescences, but the response to the 14 h and 24 h treatments differed between the varieties.