Comparison of the botanic morphology and blooming characteristics of four cultivars of rose / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To establish identifying method for further development and utilization by studying botanic morphology and blooming characteristics of four varieties of roses in Jiangsu province.</p><p><b>METHOD</b>Flower-bud and flower-form were observed by dissection and plant modality and blooming process were investigated.</p><p><b>RESULT AND CONCLUSION</b>The flower form and plant modality was obviously different among the 4 varieties of roses. The process of differentiation of flower-bud could be divided into five stages the transformation of nutritive growth cone, the occurrence and development of sepal, formation of petal primordium, formation of pistil and stamen. The blooming process was made up of flower-bud period, display-petal period, initiating blooming period, blooming period, withering period and corresponding biological marks.</p>