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采用盆栽方法,研究不同生育时期超绿水稻品种(系)‘沈农19-6’根系的生长和生理特性。结果表明,生育后期品种(系)‘沈农19-6’的最大根长、根体积、根干重和根冠比显著或极显著大于‘沈农07-015’和‘丰锦’;根系氧化能力(α-萘胺氧化量)和根系还原能力均高于‘沈农07-015’和‘丰锦’。上述指标在整个生育期内的变化趋势与‘沈农07-015’和‘丰锦’基本上一致,但在生育后期其根系衰老速度缓慢,根系活力高。
Pot experiments were conducted to study the growth and physiological characteristics of Shennong 19 - 6 ’super-green rice cultivars (lines) at different growth stages. The results showed that the maximum root length, root volume, root dry weight and root / shoot ratio of ’Shennong 19-6’ were significantly or extremely significantly greater than those of ’Shennong 07-015’ and ’Fengjin’ Oxidation capacity (α-naphthylamine oxidation) and root reduction ability were higher than ’Shennong 07-015’ and ’Fengjin’. The trend of the above indexes during the whole growth period was basically the same with that of ’Shennong 07-015’ and ’Fengjin’, but their root senescence was slow and their root activity was high in later growth period.