The main results were as following:1. The tissue culture regeneration system had been studied and optimized systemically.

主要结果如下：1。较系统地研究并优化了紫花苜蓿组织培养再生体系。

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The main results are as follows:1. In vitro propagation system was optimized: Optimization of regeneration system was studied by using tender leaves as explant.

其主要研究结果如下：1。杜仲离体快繁体系的优化：以幼嫩叶片为外植体，对杜仲再生体系的优化进行了研究。

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This study optimized the tomato regeneration and genetic transformation system.

本研究优化了番茄再生和遗传转化体系；

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