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The effect of heat on fruit size of day-neutral strawberries

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dc.contributor.advisor Dale, Adam Chen, Dianlong 2013-04-25T19:07:51Z 2013-04-25T19:07:51Z 2013-04 2013-04-18 2013-04-25
dc.description.abstract The effect of temperature on fruit and achene characteristics of day-neutral strawberries were tested by two field experiments in Florida and Ontario, and one controlled-environment experiment. The results suggested that fruit became smaller as weather became hotter. This was mainly caused by ovule number and fruit volume/ovule which were determined before flowering. Fruit volume was determined by cell number and cell size. The cell number was determined before flowering, and after flowering there are a constant number of cell divisions. Cell volume plays a relatively minor role on fruit volume and cool temperature increased cell volume. Ovule number was determined 462 degree days before flowering and 14°C appeared to be the optimum temperature for ovule initiation. When there was a smaller proportion of developed achenes, the achenes appeared to be larger and have a similar contribution to fruit development than when there was a larger proportion. ‘Albion’ performed better in Florida, whereas ‘San Andreas’ performed better in Ontario. en_US
dc.language.iso en en_US
dc.subject Temperature en_US
dc.subject Day-neutral en_US
dc.subject Ovule number en_US
dc.subject Fruit volume/ovule en_US
dc.subject 462 degree days en_US
dc.title The effect of heat on fruit size of day-neutral strawberries en_US
dc.type Thesis en_US Plant Agriculture en_US Master of Science en_US Department of Plant Agriculture en_US
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