Comparison on agronomy and quality characters of selective strain of Schizonepeta tenuifolia / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>With the purpose of selecting adequate quality and high production of Schizonepeta tenuifolia, the comparative experiments were carried out on different strain of S. tenuifolia in 2007.</p><p><b>METHOD</b>The test fields were divided into blocks randomly, and the agronomy characters were investigated in harvest time; the content of volatile oil was measured by steam distillation and the pulegone were determined by HPLC.</p><p><b>RESULT</b>The yield of S4 was 18.63% and 29.99% higher than that of CK1 and CK2, respectively. The contents of volatile oil and pulegone were also higher than those of CK and other strains in this test.</p><p><b>CONCLUSION</b>S4 shows the advantages of high production, strong disease resistance and high active components. S4 would be extended as the good breed in production.</p>