Simulation test of hybrid rice production demonstrated that the purity of hybrid rice would be improved greatly by using leaf colour as a marker to eliminate the false hybrid rice at early stage.
模拟杂交稻生产和制种繁种，表明利用苗期叶色标记结合人工去杂，可有效提高田间纯度。
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Using GRC build rockery, construction technology is relatively simple, modelling is rich variety, in natural colour and lustre, simple sense and stereo feeling can achieve higher simulation results.