The influence of CCC (2-chloroethyltrimethylammonium chloride) and temperature on dry matter and assimilate accumulation in wheat

Abstract

The effect of CCC m controlling plant height during internode elongation and assimilate accumulation, during grain filling and at grain maturity, was investigated in plants growing under three temperature regimes. With increasing temperature the plants matured earlier and the maximum height achieved became smaller. The effectiveness of CCC in controlling internode elongation was reduced. Analysis of the distribution of ¹⁴C-labelled compounds assimilated as ¹⁴CO₂ by the flag leaves after ear emergence, showed no difference between the control and CCC-treated plants. It is suggested that the early application of CCC has a limited effect on metabolism of the plant during grain filling.