(1) By using phytotron, critical temperature and the thermo-sensitive phase of Pingxiang Dominant Genic Male Sterile Rice were studied under artificial conditions.

(2) It is important to modernize management of phytotron to automatic measuring and intelligent information processing.

(3) The rooting rates of P, davidiana in phytotron reached 85%.

(4) Using four dynamic fumigation cabinets in phytotron, effects of SO_2 on ethylene production by wheat, rice, cayenne pepper, tomato and alfalfa plants were investigated.

(5) Heat-tolerance comparison of cowpea:Fruit stage experiment in farmland in summer was actualized first, and then the seedling experiments in phytotron and light growth incubator were done.

(6) This paper reports the study of fertility alteration character of Pingxiang Dominant Genic Male Sterile Rice under nature condition and in phytotron.

(7) The design and realization of the communication system for a phytotron are most important for the measuring and control of relevant parameters.

(8) More than 400 rice conventional varieties were aged in a small phytotron, and 38 rice varieties were screened for morphological index.

(9) The inhibitory effect of NAA on the growth of rice was stronger in pot culture under glass room of phytotron than in field condition.

(10) The characteristics of fertility alternation were identified under natural conditions at Wuhan and at Lingshui, Hainan Province and in phytotron at Wuhan.

(11) In this thesis we do some research on the development of neural network control algorithm. This algorithm has been simulated and practically applied in phytotron illumination control system.