A Simple Method for Testing Freezing Resistance Based on Chlorophyll Fluorescence in Tea (Camellia sinensis L.)
2000
Chun Jong-Un | Jeong In-Ho Sunchon Natl. Univ., Sunchon (Korea Republic)
For the stable production of high quality tea, the freezing resistance is a very important character. Most of the farmers have planted out-pollinated seeds that are not genetically pure. So, with small sample, a quick and simple method is required to test freezing resistance of lots of germplasm and early generation of hybrids. The absorbances (A530 nm) of TTC reduction solution at -5 degrees were positively correlated with resistance to photoinhibition of PS2 in 6 hour photoinhibitory treatments, being significantly fitted by simple linear regression. Chlorophyll fluorescence measured by Fv/Fm was found to be very useful in evaluating the relative levels of freezing resistance in tea.
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