Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/50475
Title: Boron mobility in peanut (Arachis hypogaea L.)
Authors: Sawika Konsaeng
Bernard Dell
Benjavan Rerkasem
Keywords: Agricultural and Biological Sciences
Issue Date: 1-May-2010
Abstract: In most plant families, boron (B) is phloem immobile. For plants such as peanut which bury their fruit, the mechanism for B delivery and the B source for fruit and seed growth remains enigmatic. Therefore, this study aimed to establish evidence of B retranslocation in peanut and to identify its importance in plant development. In a sand culture experiment, the increase in B contents in new organs after B withdrawal and the corresponding decline in B contents in older organs was evidence of B redistribution. In a foliar10B experiment, the10B abundance of treated-leaves decreased and10B was detected in leaves and flowers formed after the application of foliar B. Application of10B to the roots for a period also provided evidence for the retranslocation of10B accumulated during the first growth period. The10B abundance in older plant parts declined and10B appeared in new organs (flowers, pegs, leaves) that had developed after the10B supply had been replaced by11B. In the fourth experiment, foliar application of B reduced hollow heart, a symptom of B deficiency in seeds, in cv. TAG 24 from 39 to 8% and in Tainan 9 from 63 to 18%. These experiments all provide evidence for B retranslocation in peanut, but further work on the relative importance of the xylem and phloem pathways for B loading into the fruit is needed. © Springer Science + Business Media B.V. 2009.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77950341207&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50475
ISSN: 0032079X
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.


Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.