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Introducing a sensor to measure budburst and its environmental drivers

ScholarsArchive at Oregon State University

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Title Introducing a sensor to measure budburst and its environmental drivers
Names Kleinknecht, George J. (creator)
Lintz, Heather E. (creator)
Kruger, Anton (creator)
Niemeier, James J. (creator)
Salino-Hugg, Michael J. (creator)
Thomas, Christoph K. (creator)
Still, Christopher J. (creator)
Kim, Youngil (creator)
Date Issued 2015-03-10 (iso8601)
Note This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by the Frontiers Research Foundation. The published article can be found at: http://www.frontiersin.org/Plant_Science.
Abstract Budburst is a key adaptive trait that can help us understand how plants respond to a changing
climate from the molecular to landscape scale. Despite this, acquisition of budburst
data is constrained by a lack of information at the plant scale on the environmental stimuli
associated with the release of bud dormancy. Additionally, to date, little effort has been
devoted to phenotyping plants in natural populations due to the challenge of accounting for
the effect of environmental variation. Nonetheless, natural selection operates on natural
populations, and investigation of adaptive phenotypes in situ is warranted and can validate
results from controlled laboratory experiments. To identify genomic effects on individual
plant phenotypes in nature, environmental drivers must be concurrently measured, and
characterized. Here, we designed and evaluated a sensor to meet these requirements for
temperate woody plants. It was designed for use on a tree branch to measure the timing
of budburst together with its key environmental drivers; temperature, and photoperiod.
Specifically, we evaluated the sensor through independent corroboration with time-lapse
photography and a suite of environmental sampling instruments.We also tested whether
the presence of the device on a branch influenced the timing of budburst. Our results
indicated the following: the temperatures measured by the budburst sensor’s digital
thermometer closely approximated the temperatures measured using a thermocouple
touching plant tissue; the photoperiod detector measured ambient light with the same
accuracy as did time lapse photography; the budburst sensor accurately detected the
timing of budburst; and the sensor itself did not influence the budburst timing of Populus
clones. Among other potential applications, future use of the sensor may provide plant
phenotyping at the landscape level for integration with landscape genomics.
Genre Article
Access Condition http://creativecommons.org/licenses/by/3.0/us/
Topic budburst
Identifier Kleinknecht, G. J., Lintz, H. E., Kruger, A., Niemeier, J. J., Salino-Hugg, M. J., Thomas, C. K., ... & Kim, Y. (2015). Introducing a sensor to measure budburst and its environmental drivers. Frontiers in Plant Science, 6, 123. doi:10.3389/fpls.2015.00123

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