ISHS Acta Horticulturae 239: VI International Symposium on Growth Regulators in Fruit Production
HORMONAL CONTROL OF ASSIMILATE PARTITIONING: REGULATION IN THE SINK |
| Authors: | Mark L. Brenner, B.M.N. Schreiber, R.J. Jones |
| Abstract:
Hormones may enhance the partitioning of carbon assimilates to developing fruits by several mechanisms. ABA may promote both phloem unloading and sucrose uptake by sink tissue. Cytokinins, gibberellins (GAs) and auxins all likely enhance either cell division or enlargement. Increased cell numbers or size results in more sites for assimilate deposition, thus increasing dry matter accumulation. Developing sinks may also export hormones to source tissue to promote processes associated with partitioning. | |
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