The chromosome Numbers of 5 species were counted by root tip squash method, and karyotypes of 3 species of them were analyzed.
本文采取常规根尖压片法对5种干旱区野生观赏植物进行了染色体数目统计，并对其中的3种进行了核型分析。
A novel powders presetting method, namely squash presetting method, is presented to overcome the shortcomings of existing methods.
针对现有粉末预置方法的不足，提出了一种新的粉末预置方法——压片预置法。
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