| 郑秀芳,陈文,王桔红,彭玉姣,张勇.低温层积和室温干燥贮藏对4种蒺藜科草本植物种子萌发的影响[J].干旱地区农业研究,2011,29(4):53~59 |
| 低温层积和室温干燥贮藏对4种蒺藜科草本植物种子萌发的影响 |
| Effect of cold stratification and dry storage at room temperature on seed germination of four herbaceous species of Zygophyllaceae |
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| DOI：10.7606/j.issn.1000-7601.2011.04.10 |
| 中文关键词: 蒺藜科植物 低温层积 室温干燥贮藏 种子萌发 休眠 |
| 英文关键词:Zygophyllaceae cold stratification dry storage at room temperature seed germination dormancy |
| 基金项目:国家自然科学基金（31040009）；甘肃省科技厅自然科学基金（1010RJZG204）；甘肃省高校河西走廊特色资源利用省级重点实验室基金（XZ1013）；河西学院校长基金 |
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| 中文摘要: |
| 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（-5℃、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%）；室温干燥贮藏极大地提高了骆驼蒿种子萌发率和萌发速率，经室温干燥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。 |
| 英文摘要: |
| Germination responses of Peganum nigellastrum, P. harmala, Zygophyllum fabago and Z. mucronatum seeds from Hexi Corridor were examined following storage in the cold room during winter (-5℃, moist), in a refrigerator (4℃, moist) for 65 days, and at room temperature (20°C) 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 percentage (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℃ and 4℃) 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. |
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