体细胞胚分化率达90%以上。

The frequency of callus embryogenesis was above 90%.

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因时间有限，没有系统地研究杂交松体胚发生的完整过程，如何促进愈伤组织的分化及体细胞胚的诱导有待进一步的深入研究。

We were not able to induce somatic embryos because of limited time. How to make the callus differentiate and induce the somatic embryos was the basis of embryogenesis in future.

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体细胞胚大部分以间接途径产生，由表层愈伤组织分化而来；

Most of embryoids generate from the surface of the callus through the indirect process;

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