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作者对斯模士(Smoothie Golden Delicious)苹果果实丙酮酸激酶活性、阳离子浓度(Ca~(++),Mg~(++)和 K~+)与苦痘病之间的关系进行了研究.在分析贮藏后苦痘病症状变化的单因子试验中,从盛花后5天开始,每10天在果实上喷一次1%(w/v)氯化钙、1%(w/v)氯化镁或二者的混合物。果实生长初期的丙酮酸激酶活性,在贮藏后苦痘发病率为100%的处理中比在发病率仅为3%的处理中高。苦痘病发病率高的果实,Ca~(2+)与 Mg~(2+)+K~+的比率较苦痘病率低的果实小.果实生长初期的丙酸激酶活性与贮藏后苦痘病的发生成正相关,相关系数(r)在6月份最高(r=0.96),平稳下降至采收(r=0.67),贮藏后最低(r=0.12).初步结果表明,分析丙酮酸激酶可提早预测贮藏后苦痘病的发生和阳离子比率.
The authors studied the relationship between pyruvate kinase activity and cation concentrations (Ca ~ (++), Mg ~ (++) and K ~ +) of apple smoothie Golden Delicious and bitter pit disease. In a single-factor test analyzing the change in symptoms of bitter pox after storage, 1% (w / v) calcium chloride, 1% (w / v) magnesium chloride or A mixture of the two. Pyruvate kinase activity in early fruit growth was higher in treatments with 100% incidence of bitter pox after storage than at treatments with a prevalence of only 3%. The ratio of Ca 2+ to Mg 2+ + K + was lower than that of bitter pox in the fruit with high incidence of bitter pit disease. The activity of propionate kinase in the early fruit growth stage was similar to that after storage The correlation coefficient (r) was the highest in June (r = 0.96), decreased steadily to recovery (r = 0.67), and lowest after storage (r = 0.12) .The preliminary results showed that pyruvate kinase Early prediction of the occurrence of bitter pox disease after storage and cation ratio.