NDLI: Reduced late-season leaf potassium and phosphorus levels influence decreases in sugar contents of bagged apple fruit

Content Provider	Springer Nature Link
Author	Zhu, Bin Lu, Yan Qing Zhang, Xin Zhong Wang, Yi Liu, Hui Ping Han, Zhen Hai
Copyright Year	2014
Abstract	Fruit bagging has been widely used in the fruit production industry; however, in apples, it is known to cause a significant decrease in fruit sugar contents. To address this issue and identify the changes in leaf mineral contents associated with fruit sugar levels in bagged apples, aqueous solutions of 10 g L$^{−1}$ CaCl$_{2}$, 5 g L$^{−1}$ KH$_{2}$PO$_{4}$, or 2 g L$^{−1}$ Na$_{2}$B$_{4}$O$_{7}$·10H$_{2}$O were foliar sprayed during four fruit developmental stages. The late-season leaf phosphorus (P) and potassium (K) contents after the rapid fruit growth period and the soluble sugar contents in ripening fruit were significantly lower in bagged fruit than in non-bagged fruit (11.1–15.09 %). The decreases in leaf P and K contents caused by bagging were almost completely compensated for by foliage applications of CaCl$_{2}$, KH$_{2}$PO$_{4}$, or Na$_{2}$B$_{4}$O$_{7}$ during the fruit set period. Therefore, the fruit soluble sugar contents were significantly higher in bagged ripening fruit with foliar spray than in bagged fruit without foliar sprays, reaching the levels of non-bagged apples. The decrease in the sugar contents of bagged apples was closely associated with the decrease in late-season leaf P and K levels caused by fruit bagging.
Starting Page	1577
Ending Page	1584
Page Count	8
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	36
Issue Number	6
e-ISSN	18611664
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-04-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Phosphorus Potassium Sugar Starch Malus domestica Bork Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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