摘 要 ：盐生草的果实和种子存在二型性，这两种类型的种子在形状、大小、颜色及包被其花被片背部是否具翅上均有显著差异。绿色种子，圆形，直径为(1.552±0.116) mm，宿存花被革质，背部有紫红色翅状附属物，单粒重为(0.808±0.033)mg；黄色种子，椭圆形，长为(1.752±0.155) mm，宽为(1.146±0.088) mm，宿存花被革质，背部无翅状附属物，单粒重为(0.568±0.011) mg。两种种子在3个变温条件（5/25℃、5/25℃、15/25℃，暗12 h /光12 h）下的萌发率均较低，绿色种子为36%，而黄色种子为17％（15℃/25℃）。延长储藏时间和划破种皮均能显著提高绿色种子的萌发率，表明绿色种子属于非深度生理休眠。随着储藏时间的延长，黄色种子的萌发率也能缓慢提高，但不显著，而划破种皮能够显著促进其萌发，表明黄色种子属于深度生理休眠。
Abstract:The fruit and seed characteristics were observed on Halogeton glomeratus C. A. Mey. from Junggar Desert. It is found the seeds of Halogeton glomeratus are dimorphism. The two types of seeds are different in shape, size, color and external structure of seeds. The green seeds have lignified tepals with long wings, can be easily dispersed by wind to a far distance from the mother plant. The yellow seeds have tepals without wings, and dispersed near the mother plant. The seeds of Halogeton glomeratus germinated in incubators for 30 d with a 12 h photoperiod and 12 h thermoperiods (dark / light) of 5/15℃, 5/25℃ and 15/25℃. The germination percentages of freshly matured dimorphism seeds are low (＜50％). Extending the storage time can significantly increase germination percentage of green seeds, but have no significant effect on yellow seeds. Scarification on covering layers can significantly increase the germination percentage of these dimorphism seeds. Results indicated that green seeds have non-deep physiological dormancy and yellow seeds have deep physiological dormancy.