文摘

种子休眠的打破Heracleum persicum l .药用植物

作者(年代):SeyedMehdi哈和Maedeh Nejhadi

Heracleum persicum Desf。(伞形科)是最普遍的一种原生的属在伊朗,伊拉克和土耳其。整个植物的特点是茴香味,其成果用于泡菜的制备香料在伊朗,命名为golpar的地方。h . persicum的种子被NaOCL1%消毒5分钟。治疗一样冷分层(4°C),改变温度(15/4°C),光明/黑暗和不同浓度的赤霉素受到种子。每次治疗后种子被转移到他在恒定的温度25°C,和之间的相对湿度75%。发芽的种子数后21天。另一方面,每次课程后,十个被选出的种子和胚胎切除和测量。我们的研究结果表明,冷分层在4°C h . persicum诱导种子发芽。最大发芽是16周后发生分层高达12.5%。治疗的种子通过改变温度(15/4°C),导致休眠打破和促进种子萌发高达5%。 The results of embryos morphology showed that embryo length of H. persicum had increased approximately 500% during 16 weeks of cold stratification at 4°C. It was concluded that the seed dormancy of H. persicum is of deep complex morphophysiological type that can be broken only by relatively long period of chilling.