这两阶段杂交育种的结果是，尽管杂交牡蛎重来没有真正意义上的自身繁殖，但可以为市场提供大量的杂交牡蛎。
The result of this two-stage crossbreeding process is that, though none of the hybrids involved breeds true by itself, a marketable hybrid oyster can nevertheless be turned out in large quantities.
在田间试验条件下，对超级杂交稻两优培九各生育阶段的养分吸收特性进行了研究和分析。
The uptake characteristics of nutrients at different growth stages of the super hybrid rice combination Liangyou Peijiu were studied on field experimental conditions.
通过田间试验，研究了在不同程度低钾胁迫条件下，杂交稻和常规稻在不同生育阶段对钾的吸收、分配和利用效率。
Field fertilizer experiments were conducted to study K uptake, distribution and use efficiency of hybrid and conventional rice un der different low-K stress conditions.
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