| 红菜薹的抗冻性 |
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| 引用本文： | 刘乐承. 红菜薹的抗冻性[J]. 中国蔬菜, 1998, 1(3): 2-0 |
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| 作者姓名： | 刘乐承 |
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| 作者单位： | 湖北农学院园艺系; 华中农业大学园艺系; |
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| 摘 要： | 以１９份红菜薹材料为试材，将离体叶片组织经过系列冷冻低温处理后测定电导率，进而计算细胞膜伤害率，然后用Ｌｏｇｉｓｔｉｃ方程拟合细胞膜伤害率与温度的关系，求出拐点温度来估计材料的低温致死温度。结果表明：拐点温度能准确估计红菜薹的抗冻性；红菜薹的低温致死温度因材料而异，在－５～－１１℃之间；抗冻性与农艺性状的关系表现为越晚熟抗冻能力越强，总莲座叶数越多抗冻能力也越强，同时也有植株越高大抗冻能力越强的趋势。
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| 关 键 词： | 红菜薹 抗冻性 细胞膜伤害率 低温致死温度 |
| 收稿时间： | 1900-01-01; |
Study on the Freezing Tolerance of Red Tsai tai |
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| Liu Lecheng ,Yan Rulai. Study on the Freezing Tolerance of Red Tsai tai[J]. China Vegetables, 1998, 1(3): 2-0 |
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| Authors: | Liu Lecheng Yan Rulai |
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| Affiliation: | 1.Department of Horticulture; Hubei Agricultural College; Jingzhou 434103;2.Department of Horticulture; Huazhong Agricultural University; Wuhan 430070 |
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| Abstract: | There were 19 genotypes of Red tsai tai ( B. Campestris ssp. Chinensis var. Purpurea Hort. ) to be used in this experiment. Excised leaflet tissues were treated with various low temperatures. After measuring the percentage of electrolyte leakage,cell membrane injury percentage (MIP) was calculated. Then using the relationship of MIPs and temperatures to coincide Logistic equation,the inflexion point temperatures (IPT) were made out and were used to estimate the lethal low temperatures (LLT). The... |
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| Keywords: | Red tsai-tai Freezing tolerance Membrane injury percentage Lethal low temperature |
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