Influence of photoperiod and temperature on the development of winged bean plants

Influence of photoperiod and temperature on the development of winged bean plants

1996

A:PS

Psophocarpus tetragonolobus plants were maintained under photoperiods of 10, 12, 13, 14, 16 or 20 h and day/night temperature regimes of 20/15, 25/20 or 30/25øC. No flower initiation or tuberization occurred under the 20 h photoperiod, and they were lower and later under the 16 h photoperiod than the other treatments. Under a 13 h photoperiod, a 20/15øC regime reduced growth, while 30/25øC increased shoot dry matter and leaf area. Under inductive photoperiods, flowering only occurred at 25/20øC. This regime also produced the greatest tuberous root dry matter.

v.8(2):105-110, REVISTA BRASILEIRA DE FISIOLOGIA VEGETAL

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