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Growth, flowering and climate (13)

10 Aug 2012

Blueberries as Ornamental Edibles

Paul Fisher

Blueberries provide a niche crop that combine consumer interest in edible gardening with sustainability and low-care perennials.

Blueberries as ornamental edibles article (1248 KB)

2 Apr 2012

FlowersOnTime: A Computer Decision-Support Tool for Floriculture Crop Producers

Paul Fisher (University of Florida), Erik Runkle (Michigan State University), Matthew Blanchard (Michigan State University), John Erwin (University of Minnesota), Bruce MacKay (thomasBaine Ltd.)

This computer decision-support tool quantifies how a change in greenhouse air temperature would affect flower timing for a range of floriculture species.

This information is helpful when growers are considering reducing greenhouse air temperature in order to save on heating fuel cost, or because they want to achieve a target flowering date by manipulating temperature.

FlowersOnTime (145 KB)

21 Oct 2010

Hormonal and cell division analyses in Watsonia lepida seedlings

John Erwin (University of Minnesota)

The regeneration ability, cell division activity, auxin and cytokinin content of seedling regions and hypocotyl subsections of Watsonia lepida were studied. A total of 21 different cytokinins or conjugates were found in seedlings, with the highest cytokinin content in meristematic regions (root and shoot apical meristems). The greatest contribution to the cytokinin pool came from the biologically inactive cZRMP, suggesting that significant de novo synthesis was occurring. Five different auxins or conjugates were detected, being concentrated largely in the shoot apical meristem and leaves, IAA being the most abundant. Analysis of hypocotyl subsections (C1-C4) revealed that cell division was highest in subsection C2, although regeneration in vitro was significantly lower than in subsection C1. Anatomically, subsection C1 contains the apical meristem, and hence has meristematic cells that are developmentally plastic. In contrast, subsection C2 has cells that have recently exited the meristem and are differentiating. Despite high rates of cell division, cells.

JPLPH50749 (624 KB)

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