Effect of a Novel Latex Flow Regulator on Increasing Rubber Yield of Rubber Tree Clone Reyan8-79
The effect of a novel latex flow regulator on the latex production, rubber yield, girth increment, bark structure and occurrence of tapping panel dryness(TPD) were analyzed. Results showed that the regulator caused the latex production and rubber yield to be increased by 23.38% and 16.01% in the moths with relatively high temperature, respectively. It also reduced the TPD occurrence. The rate of TPD occurrence was 2.22%, the lowest in comparison with 0.5% ethrel and that without any treatments. And moreover, it could induce the secondary laticifer differentiation and had little influence on stem girth increment. Therefore, the novel regulator is characterized by its high efficiency and safety.