Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 356779
Title Prohexadione-calcium changes morphological and physical traits in strawberry plants and preconditions transplants to water stress
Author(s) Reekie, J.Y.; Struik, P.C.; Hicklenton, P.R.; Duval, J.R.
Source European Journal of Horticultural Science 72 (2007)4. - ISSN 1611-4426 - p. 158 - 163.
Department(s) Crop and Weed Ecology
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) growth - photosynthesis - paclobutrazol - transpiration - leaves - leaf
Abstract Prohexadione-calcium (ProCa) applied as foliar spray, increases root to shoot ratio and reduces specific leaf area (SLA) in strawberry plants ( Fragaria × ananassa Duch.). These effects may help treated plants to survive a transplant shock. Under mild water stress, ProCa caused a transient reduction in leaf stomatal conductance (gs) in 'Camarosa' and 'Sweet Charlie' plants. This reduction in gs was paralleled by a decrease in transpiration in treated plants, which was not attributable to differences in plant size or leaf area. Pressure volume curves of 'Sweet Charlie' plants revealed that ProCa application lowered leaf osmotic potential at both full and zero turgor, and increased the volumetric modulus of elasticity. ProCa treatment regulated the leaf morphology of strawberry and preconditioned strawberry plants to tolerate water stress. Under field conditions in the plasticulture fruit production system, newly transplanted bare-root strawberry plants had a progressively higher water potential (¿l) and gs with a longer overhead irrigation. Plants treated with ProCa had a higher ¿l and gs than control plants at the same level of overhead irrigation. Application of ProCa to strawberry transplants may in part be able to replace overhead irrigation and at the same time maintain acceptable levels of fruit yield
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