| 低温冷冻条件对玉米种子发芽率的影响 |
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| 引用本文： | 盖颜欣,杨青林,王奇,张勤,季志强,丁贵江.低温冷冻条件对玉米种子发芽率的影响[J].河北农业科学,2009,13(12):1-3. |
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| 作者姓名： | 盖颜欣 杨青林 王奇 张勤 季志强 丁贵江 |
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| 作者单位： | 承德市农业科学研究所,河北,承德,067000 |
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| 摘 要： | 以4个玉米品种为试材,研究了种子水分含量以及冷冻温度和时间对芽率的影响。结果表明：不同玉米品种的抗冻能力有明显差别,其中,综3抗冻能力较强,478抗冻能力较差。在低温冷冻条件下,种子水分含量高于19%时,发芽率降低明显,短时间（12 h以内）冷冻对种子芽率影响不大,但在-5℃以下冷冻时间超过24 h,种子芽率就会受到影响,且冷冻时间越长、冷冻温度越低,种子芽率降低越明显。
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| 关 键 词： | 冷冻 玉米 种子 发芽率 |
Effects of Low Temperature Freezing Conditions on Seed Germination of Maize |
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| GAI Yan-xin,YANG Qing-lin,WANG Qi,ZHANG Qin,JI Zhi-qiang,DING Gui-jiang.Effects of Low Temperature Freezing Conditions on Seed Germination of Maize[J].Journal of Hebei Agricultural Sciences,2009,13(12):1-3. |
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| Authors: | GAI Yan-xin YANG Qing-lin WANG Qi ZHANG Qin JI Zhi-qiang DING Gui-jiang |
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| Institution: | GAI Yan-xin,YANG Qing-lin,WANG Qi,ZHANG Qin,JI Zhi-qiang,DING Gui-jiang(Chengde Institute of Agricultural Sciences,Chengde 067000,China) |
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| Abstract: | The effects seed water content,freezing temperature and time on the seed germination of maize were studied.The results showed that the antifreezing ability of Zong 3 was the best,and that of 478 was the worst.With low temperature freezing,the germination was lower when the seed water content was higher than 19%,the freezing had little effect on germination within 12 hours,and influenced the germination below-5 ℃ over 24 hours,and the seed germination decreased with time prolonged and temperature drop. |
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| Keywords: | Freezing Maize Seed Germination |
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