Differences in boron distribution and forms in four citrus scion–rootstock combinations with contrasting boron efficiency under boron-deficient conditions

KEY MESSAGE : Boron efficiency of scion ‘Fengjie-72' is related to its less reduced boron concentration and distribution in leaves, achieved by decreasing the ratio of available boron in roots under boron-deficient conditions. Boron (B) deficiency is widespread in citrus orchards. Previous stud...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Trees (Berlin, West) Jg. 28; H. 6; S. 1589 - 1598
Hauptverfasser: Wang, Nannan, Yan, Tingshuai, Fu, Lina, Zhou, Gaofeng, Liu, Yongzhong, Peng, Shu’ang
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer-Verlag 01.12.2014
Springer Berlin Heidelberg
Springer Nature B.V
Schlagworte:
Agriculture
Biomedical and Life Sciences
Boron
Buds
Citroncirus webberi
Citrus
Forestry
Fruits
Leaves
Life Sciences
Orchards
Original Paper
Plant Anatomy/Development
Plant Pathology
Plant Physiology
Plant Sciences
Plants
Poncirus trifoliata
Roots
rootstocks
sand
scions
Citrus
Scion–rootstock combination
Efficiency
Boron deficiency
ISSN:0931-1890, 1432-2285
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:KEY MESSAGE : Boron efficiency of scion ‘Fengjie-72' is related to its less reduced boron concentration and distribution in leaves, achieved by decreasing the ratio of available boron in roots under boron-deficient conditions. Boron (B) deficiency is widespread in citrus orchards. Previous studies have demonstrated that the B-efficient navel orange scion ‘Fengjie-72' (Fs) and rootstock Carrizo citrange (Cr) are more tolerant to B deficiency than the closely related B-inefficient scion ‘Newhall’ (Ns) and rootstock trifoliate orange (Tr), respectively. However, the mechanisms underlying such differences remain unclear. Here, we investigated the differences in B distribution and forms among four combinations (Fs/Cr, Fs/Tr, Ns/Cr, and Ns/Tr) under adequate (0.25 mg/L) or deficient (0.001 mg/L) B supply for 300 days in sand culture. The results showed that B concentrations in buds and leaves of Fs-grafted plants were significantly higher than the respective concentrations of Ns-grafted plants under B-deficient conditions. Moreover, B distribution of Fs-grafted plants due to B deficiency was reduced less in leaves, but more in roots as compared to that of Ns-grafted plants. However, Ns/Cr accumulated more B in the scion stem (24 %) than the other combinations (17–19 %) when B was limited. A correlation was established between B efficiency and the ratio of B concentration in the rootstock stem or buds to the scion stem. Under B-deficient conditions, the ratio of available B (free B and semi-bound B) was significantly higher in leaves in Cr-grafted (36 %) than Tr-grafted plants (29 %), but lower in roots of Fs-grafted (22 %) than Ns-grafted plants (28 %). These results suggest that, under B-deficient conditions, differential B efficiency arises probably because Cr transports more B into scion, Fs redistributes B more efficiently within the plant, or both.
Bibliographie:http://dx.doi.org/10.1007/s00468-014-1067-1
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-1
ObjectType-Feature-2
content type line 23
ISSN:0931-1890
1432-2285
DOI:10.1007/s00468-014-1067-1