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测定受涝害的水稻是否尚具生活力,若采用常规的田间诊断方法,一是诊断时间要待退水后,影响救灾计划的及早安排,不利于取得抗涝救灾的主动权;二是以手摸眼观替代生化测定,以生死测定替代内在生活力的测定,直接制约着测定质量的提高,难以适应当前抗涝救灾中对农业技术的新要求,而采取下述两种化学测定方法,则可克服其弊端。H_2O_2分解法具生活力的作物存在过氧化氢酶,可将H_2O_2分解(2H_2O_2→2H_2+O_2↑),取淹水作物的茎或叶等,剪取一段投入0.1%H_2O_2+O_2↑),如能观察到气泡放出,表示该器官尚未丧失
Determination of waterlogged rice is still viable, if the use of conventional field diagnostic methods, one is the diagnosis of time to be back after the disaster relief plan affected the early arrangement is not conducive to obtain the initiative to flood and disaster relief; the second is based Instead of biochemical determination of hand to touch the eye to replace the determination of life and death determination of intrinsic vitality directly affect the quality of measurement to improve and difficult to adapt to the current flood and drought relief of agricultural technology in the new requirements and the adoption of the following two chemical determination methods, You can overcome its drawbacks. H_2O_2 has the activity of catalase decomposition of crops, can H_2O_2 decomposition (2H_2O_2 → 2H_2 + O_2 ↑), take the flooded crop stems or leaves, cut a period of 0.1% H_2O_2 + O_2 ↑), such as Bubbles were observed to be released, indicating that the organ had not been lost