果梅完全花与不完全花氮磷钾质量分数比较分析

果梅不完全花的形成和营养水平关系密切。为研究果梅完全花与不完全花营养水平的差异,测定并分析了4个果梅品种完全花与不完全花不同发育时期的氮磷钾质量分数。结果表明,4个果梅品种完全花中氮元素的质量分数大于不完全花中氮的质量分数,但是磷元素质量分数要比不完全花磷的质量分数低。各品种钾元素质量分数变化比较复杂,在小蕾期完全花钾的质量分数大于不完全花,而在开花期完全花钾质量分数小于不完全花钾的质量分数。各品种完全花与不完全花中氮、磷、钾质量分数在不同时期的变化趋势不相同。试验结果为研究果梅雌蕊败育提供了一定的营养学数据,也为进一步探索雌蕊败育问题的解决方案打下了基础。

Comparison of the contents of nitrogen,phosphorus and potassium between perfect and imperfect flowers in Japanese apricot (Prunus mume)

The contents of nitrogen,phosphorus and potassium at different developmental stage of perfect and imperfect flowers were determined. The results showed that the content of nitrogen in perfect flowers was higher than that of imperfect flowers,but the content of phosphorus was lower. Content of potassium in different cultivars was different. It was higher in the perfect flowers at the stage of young bud,but it was lower in the stage of blossom. Content and change trend of N, P, K in perfect and imperfect flow...