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本试验以果实负载量不同的成年在梨、白酥梨树为试材,测定叶片和果实内钾含量的变化,结果表明,成年结果梨树叶片钾含量的变化规律与果实生长、果实负载量、果实采收期及落叶期有关.即随果实生长叶片钾含量渐趋下降,至采收前达到最低,采收后即回升,落叶前再次下降.梨树叶片的钾含量与果实负载量呈负相关.梨树叶片与果实的钾含量变化呈同步变化.叶片内钾含量高的果实大,总糖含量高.成年梨树叶片钾含量在品种间差异较大.
In the present study, the changes of potassium content in leaves and fruits of adult pear and pear cultivars with different fruit load were measured. The results showed that the variation of potassium content in adult leaves and fruit growth, fruit load , Harvest time and deciduous period.The content of potassium decreased with the growth of fruit, reached the minimum before harvest, recovered after harvest, and then decreased again before deciduous.The potassium content and fruit load of pear leaves Negative correlation.The changes of potassium content in leaves and fruits of pears varied in a synchronous manner.The fruits with high potassium content and high total sugar content had the highest content of potassium in adult leaves.The content of potassium in adult pear leaves varied greatly among the varieties.