1. The culture condition of callus formation and plantlet regeneration of revers genic sterile rice variety FHS was studied.
以反向核不育水稻品系FHS为研究材料，对其成熟胚愈伤组织的诱导及其再生条件进行了研究。
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2. Network support is the foundation and core of any reverse logistics, the performance of reverse logistics management depend on the design of revers.
3. Experimental method is used to conduct qualitative and quantitative analysis of pattern design of the flat collar, turndown collar and revers collar, and the linear return equations are established.
4. Experimental method is used to conduct qualitative and quantitative analysis of pattern design of the flat collar, turndown collar and revers collar, and the linear return equations are established.
