Germination responses of Peganum nigellastrum , P. Harmala, Zygophyllwn fabago and Z . Mucrona- turn seeds from Hexi Corridor were examined following storage in the cold room during winter (-5°C , moist) , in a re~ frigerator (4℃ , moist) for 65 days , and at room temperature (20℃ ) for 6 months . The germination percentages of seeds of Z. Fabago stored in the cold room during winter and in the refrigerator were 74 .5% and 64% , respectively , whereas those stored dry at room temperature 27% , and those non-stored 12% . Seeds of P. Harmala stored in the cold room during winter germinated at a higher percentage (70 .5% ) than those stored in the refrigerator (27% ) and those stored dry at room temperature (12% ) . Seed of P. Nigellastrum stored dry at room temperature germinated at a higher percent- age (98% ) than those stored in the cold room during winter (65% ) , in the refrigerator (56% ) and non-stored (8% ) . Storage conditions had no significant effect on the germination of Z. Mucronatum seeds, and the maximum germination under any storage treatment was less than 10% . Thus , cold stratification ( 5°C and 4°C ) can be an efficient method to break dormancy of P. Nigellastrum , P. Harmala, Z. Fabago seeds , and dry storage at room temperature can improve greatly seed germination of P. Nigellastrum , but not that of Z. Mucronatum .%研究了低温层积和室温干燥贮藏对河西走廊骆驼蒿(Peganum nigellastrum)、骆驼蓬(P.harmala)、驼蹄瓣(Zygophyllum fabago)和蝎虎驼蹄瓣(Z.mucronatum)蒺藜科4种草本植物种子萌发的影响.结果显示,贮藏条件对4种蒺藜科植物种子萌发率和萌发速率有极显著的影响(P<0.001).经冬季冷屋贮藏(-59℃、湿润)和冰箱贮藏(4℃、湿润)的驼蹄瓣种子萌发率分别达到74.5%和64%,经室温干贮的种子萌发率仅为27%,略高于贮藏前的种子萌发率(12%);经冬季冷屋贮藏的骆驼蓬种子萌发率达到70.5%,大于冰箱贮藏后的种子萌发率(27%)和室温干贮后的种子萌发率(12%);室温干澡贮藏极大地提高了骆驼蒿种子萌发率和萌发速率,经室温干澡贮藏的骆驼蒿种子萌发率(98%)＞冬季冷屋贮藏后的萌发率(65%)＞冰箱贮藏后的萌发率(57%)>贮藏前的萌发率(8%);3种贮藏条件对蝎虎驼蹄瓣种子萌发几乎没有影响,萌发率不足10%.说明低温层积能有效破除骆驼蒿、骆驼蓬、驼蹄瓣种子休眠,提高萌发率和萌发速率,而室温干燥贮藏使骆驼蒿种子完成后熟,提高萌发率和萌发速率.
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