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1980和1981年分别用8个和10个水稻品种作中稻栽培,用萘胺法测定根系氧化力,发现水稻秧苗期和幼穗形成期的根系氧化力都很高。在本试验范围内,移栽后各生育期根系的氧化力(相对数值)的变化趋势是:分蘖盛期,70％;幼穗形成期,100％;孕穗期,60～80％;齐穗期,40％;乳熟期,30％。并探讨了地上部碳水化合物消长和分配规律等对根系氧化力的影响。认为所测得的根系氧化力的变化趋势具有规律性,是水稻生理生态特性的反映。
Eight and ten rice cultivars were used for mid-season cultivation in 1980 and 1981, respectively. The root oxidative stress was measured by the naphthylamine method. It was found that there was a high root oxidative stress in rice seedling and panicle formation. Within the scope of this experiment, the trend of oxidative stress (relative value) of root system at each growth stage after transplanting was as follows: tillering stage, 70%; panicle formation stage, 100%; booting stage, 60-80% Period, 40%; milk stage, 30%. The effects of aboveground carbohydrate consumption and distribution on root oxidation were also discussed. It is considered that the trend of the measured root oxidation is regular and is a reflection of the physiological and ecological characteristics of rice.