Study on Annual Changes of Nutritive Elements in Unbagged and Bagged Fruits of ‘Yali’ Pears(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2012年24期

Page:

5-8

Research Field:

Publishing date:

Info

Title:

Study on Annual Changes of Nutritive Elements in Unbagged and Bagged Fruits of ‘Yali’ Pears

Author(s):

LU Wei-hong¹; 2; ZHANG Yu-xing¹

1.College of Horticulture，Hebei Agricultural University，Baoding，Hebei 071001；

2.Baoding Professional Technique College，Baoding，Hebei 071051

Keywords:

‘Yali’ pear; fruit; nutritive element; bagged

PACS:

S 661.205+.9

DOI:

-

Abstract:

From 2009 to 2010 in Hebei Agricultural University of Baoding，selected representative 10 years born pears trees,by measuring the contents of mineral elements in the unbagged and bagged fruits of ‘Yali’ pears in different growth period，the variation of contents of mineral elements in ‘Yali’ pears fruits of unbagged and bagged pears were studied.The results showed that there were 10 kinds of nutritive elements in the fruits，whose contents would reduce gradually with the growing of fruits.The changes of N，P，K,Ca，Mg，Mn，Cu，Zn and B contents in the bagged and unbagged fruits 〖JP2〗showed the same pattern.The contents of N，P，K，Mg and Cu in the unbagged fruits were approximately equal to those in the bagged ones，with those of Fe and Zn in the bagged being less than in the unbagged and those of Ca,and B being higher than in the unbagged.The contents of nutritive elements in the unbagged fruits exhabited such a trendency：K＞N＞P＞Ca＞Mg，Fe＞B＞Zn＞Mn＞Cu.

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