铝胁迫对大豆遗传基因型形态和生理特性的影响
Effect ofAl Stress on Morphological and Physiological Characters of Soybean Genotypes
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摘要: 本文通过盆栽试验和化验分析,研究铝(Al)胁迫对大豆作物生长的影响。结果表明,在溶液条件下,Al对大豆主要农艺性状有明显的影响。其临界值为12ppm.在Al的胁迫下,其浓度与根系的α-萘胺的生物氧化强度呈负相关,与根系细胞质膜透性(电导率和外渗液K+含量)呈正相关,与叶片脯氨酸含量也呈正相关,叶片脯氨酸含量可作为大豆作物耐Al的生理指标。Abstract: Pot experiments and chemical analysis were conducted to determine an effect of Al stress on growth of soybean crop.The results showed that there was a significant effect of Al stress on the major agronomic characters of soybean in solution.The critical value of Al toxicity for soybean was 12ppm Al in solution.Under the condition of Al stress,there were negative relationship between the Al concentration and intensity of biological oxidation of α-naphthylamine in the root system,and pos-itive relationship between Al concentration and electrical conductivity and potash content in permeable solution in root systerm.The positive relationship between Al concentration and the content of proline in leaves of soybean could also observed,so the content of proline in leaves can be used as a physiological indicator of Al-torelance of soybean crop.
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[7] 徐渐宇, 胡荣海. 1983. 作物的抗早能力和体内游离脯氨酸含量关系(综述). 国外农业科技, (113)9:19-22 [9] 高吉寅. 1984. 水稻等品种苗期抗旱生理指标的探讨. 中国农业科学, (4):41-44
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