Coffman C B, Bare C E, Gentner W A
Bull Narc. 1975 Jul-Sep;27(3):41-6.
Plants of Papaver bracteatum Lindl. derived from different germplasm sources within one Iranian collection were grown for 18 and 37 weeks in the greenhouse and controlled environment chambers. Gas-chromatographic analyses showed significant differences between thebaine concentrations of root tissue for 18-week-old plants, but not for 37-week-old plants. The two age groups did not differ in thebaine yield per unit of dry weight of root tissue. However, due to more profuse root growth, the total yield of thebaine from roots of the older plants was about four times that of the younger plants. Shoot thebaine concentrations differed significantly for 18- and 37-week-old plants. The over-all mean thebaine concentration for shoots of older plants was nearly twice that of younger plants. The variation in thebaine concentrations in these plants suggested genetic differences between the germplasm sources. Thus, domestication of P. bracteatum will require selection of germplasm from within and between collections, for plants of the greatest economic potential.
将来自伊朗一个收集品中不同种质来源的紫堇属植物在温室和可控环境箱中种植18周和37周。气相色谱分析表明，18周龄植株根组织中的蒂巴因浓度存在显著差异，但37周龄植株不存在。两个年龄组在根组织单位干重的蒂巴因产量上没有差异。然而，由于老植株根系生长更旺盛，其根部蒂巴因的总产量约为年轻植株的四倍。18周龄和37周龄植株地上部分的蒂巴因浓度存在显著差异。老植株地上部分的总体平均蒂巴因浓度几乎是年轻植株的两倍。这些植物中蒂巴因浓度的变化表明种质来源之间存在遗传差异。因此，紫堇的驯化需要从收集品内部和不同收集品之间选择具有最大经济潜力的种质。
