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本文对“农进2号×C_(57)”和“桂花黄46A×C_(57)”两个晚稻杂交组合的生理特性与本地常规晚稻良种“鄂晚3号”进行对比分析,初步结果是: 杂交晚稻的光合机能生理特性均优于常规晚稻;呼吸强度比常规晚稻低;发根力和根系活力比常规晚稻高;养分积累利用和运输速度比常规晚稻高,且过氧化氢酶、过氧化物酶的活性也都略高于常规晚稻.
In this paper, the physiological characteristics of two late hybrid rice combinations “Nongjin 2 × C 57” and “Osmanthus Huang 46A × C 57” were compared with the local routine late rice “Nanyuan 3”. The preliminary results were : The photosynthetic functional and physiological characteristics of late hybrid rice were better than that of conventional late rice; the respiration intensity was lower than that of conventional late rice; the rooting and root activity were higher than that of conventional late rice; the accumulation and utilization of nutrients were higher than conventional late rice, Oxidase activity are also slightly higher than conventional late rice.