Articles
TRANSLOCATION OF BORON IN ALMOND TREES
Article number
721_45
Pages
321 – 324
Language
English
Abstract
Boron is generally considered to be phloem immobile in higher plants.
However, recent information (Brown and Hu, 1996) shows that B may be mobile in almond tissues.
This research examines the redistribution of isotopically-enriched B10 applied to mature leaves and flowers of Non Pareil almond trees in a field experiment.
Results indicated that a significant proportion of mature leaves where B was applied rapidly re-translocated to the growing fruits; 18% after 5 d and 27% after 10 d.
B applications at full bloom indicated that 48% of B was recovered in fruitlets, 20% in the shoot bark and 14% in the leaves 40 d after application.
These results confirm B mobility in this species.
However, recent information (Brown and Hu, 1996) shows that B may be mobile in almond tissues.
This research examines the redistribution of isotopically-enriched B10 applied to mature leaves and flowers of Non Pareil almond trees in a field experiment.
Results indicated that a significant proportion of mature leaves where B was applied rapidly re-translocated to the growing fruits; 18% after 5 d and 27% after 10 d.
B applications at full bloom indicated that 48% of B was recovered in fruitlets, 20% in the shoot bark and 14% in the leaves 40 d after application.
These results confirm B mobility in this species.
Authors
C. Sotomayor, J. Castro, V. De Pede, R. Ruiz
Keywords
boron isotopes, boron mobility
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