摘要
以"黄金梨"和"鸭梨"为试材,分析了叶片和果实中主要矿质元素含量年变化及其二者间的相关关系。结果表明:叶片内氮、磷、钾含量随叶龄增长而降低,钙含量随叶龄增长而升高,镁则前期增加,后期减少;果实中氮、磷、钾、钙、镁含量随果实膨大而呈递减趋势。"黄金梨"叶片和果实中氮磷钾含量高于"鸭梨"。"黄金梨"叶片中氮磷含量和果实中氮磷含量呈显著正相关,镁则呈负相关。
The changes of five mineral element contents and correlation among them in the leaves and fruits of ＇Whangkeumbae＇ and ＇Yali＇ pear were studied.The results showed that the contents of nitrogen,phosphorus,and potassium in the leaves manifested a decreasing tendency in growing season.The content of calcium showed increasing tendency,and the content of magnesium increased in early period and decreased in late period.The content of nitrogen,phosphorus,potassium,calcium,and magnesium in fruits manifested a decreasing tendency from fruit set to harvest.The contents of nitrogen,phosphorus,and potassium in leaves and fruits in ＇Whangkeumbae＇ were higher than that in ＇Yali＇ pear.The content of nitrogen,phosphorus,and potassium in leaves were correlated positively with that in the fruits in ＇Whangkeumbae＇,but that of magnesium was negatively.
出处
《北方园艺》
CAS
北大核心
2011年第19期5-7,共3页
Northern Horticulture
基金
河北省科技厅资助项目(02220184D)
