A Study on the Plant Pattern for Rice by Means of Virtual Experiment

On the basis of virtual experiment carried out by means of Rice Plant Type Design System(RPTDS),using modified rice population for field experiment and panicle weight model,the plant pattern for supper high yielding rice Shennong 265 was studied.The result showed that: little effect of plant pattern on the yielding level was found and south-north orientated 35 cm×14.3 cm population showed the greatest panicle weight,3.32 g;populations with good performance of middle lower leaves produced greater panicle weight;ordered plant patterns were better than disordered ones.So,revising the plant type to enhance the photosynthetic ability may promote the yielding level.The third leaf may be very important in plant type design.