Abstract:

So as to increase yield and improve quality of Pleurotus eryngii, the study was performed for constructing growth model of P. eryngii by the method of growing degree days. Large amount of data were collected, including temperature, humidity, CO2 concentration and morphological data of fruit body under facility cultivation condition. By investigating the collected data, virtual dynamic growth models for the cap diameter and fruit body length were constructed, and were verified by experimental data. It was indicated that Weibull function （R=0.9990）and (R=0.9989) had the best fitting performance, and could reflect growth characteristics of P. eryngii. Furthermore, it was found that, the growth of fruit body length and cap of P. eryngii basically fit single S growth curve, and the growth of fruit body was finite.