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|Title: ||Screening Reproductive-Stage Cold Tolerance For The NSW Rice Improvement Program|
|Authors: ||Reinke, Russell|
|Issue Date: ||25-Oct-2005|
|Series/Report no.: ||Program 2|
|Abstract: ||A summary of this work is provided. The rest of the report will subsequently be the basis for
information contained in a thesis to be produced by John Smith, Masters student.
This project aimed at developing a clearly-defined and repeatable low-temperature screening
protocol to enable selection for cold tolerance in the NSW DPI Rice Improvement Program. The
series of trials identified a number of important issues that must be addressed when measuring
tolerance to low temperatures during the reproductive stage of rice.
The capacity of the controlled-environment glasshouse to maintain the temperatures necessary to
induce floret sterility is extremely important, as small deviations from both maximum and
minimum temperatures can influence floret sterility. The controlled-temperature facility used at
Deniliquin had limited capacity to maintain low temperatures during periods of high ambient
minimum temperatures. The glasshouse in which plants are raised before and after cold
treatment must also have good temperature control so that cold damage is not induced during
these periods. Factors other than temperature also influence floret sterility, and this project
demonstrated an effect of the position of the pot within the glasshouse, as well as an effect
associated with plants were completely surrounded by others or at the edge of the plant canopy ...|
|ISBN: ||1 876903 27 9|
|Type of Work: ||Other|
|Appears in Collections:||Research Papers|
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