nlwxpearo
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 Posted: Mon 10:31, 24 Jan 2011 Post subject: Low temperature on Apple and its parents Hanfu chl |
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Low temperature on Apple and its parents Hanfu characteristics of chlorophyll fluorescence
v / Fo Ps Ⅱ commonly used measure of the potential activity of l1. J. From Figure 4, three varieties of Fv / Fo trends vary, but are from time to time in a significant decline in 4 ℃, Fuji 4 ℃ 8 ℃ Compared to deal with the rise and reach the whole process 4 ℃ maximum 4.062, an increase of 17.6%, and thereafter declined. East Light 0 ~ 8 ℃ 3 temperatures are rising gradient, 0000000000000004208642086420l0000 aims / coffee cafe outside the breaking nCTn - li6RIGUtillRAE40BnREnLI-SIHICn - CHINA AGRICULTURAL UNIVERSITY 23,[link widoczny dla zalogowanych], reached the maximum volume of 4.76 O ℃. Han Fu also reached the maximum 5.64 at 4 ℃, then gradually declined. 3 species are there in a minimum of 4 ℃, and the sharp decline compared with the respective maximum, Fuji, East Light, Hanfu decreased by 77.8%, 84.9%,[link widoczny dla zalogowanych], 72.7%. Chan, Kam 3 Discussion and conclusion and parameters of chlorophyll fluorescence induction kinetics of photosynthesis contains a wealth of information, because of its highly vulnerable to the impact of stress is rapid and sensitive detection of non-injury research and impact of stress on the methods of plant photosynthesis _l. Different fluorescence parameters after low temperature analysis shows,[link widoczny dla zalogowanych], Fo value in each treatment temperature decreased to varying degrees, a sharp rise at 4 ℃, indicating that PSII was severely damaged, studies have shown that, Fv / Fm decline could be accompanied by a rise in Fo or decline, the increase in non-radiative energy dissipation will cause Fo decreased,[link widoczny dla zalogowanych], while the rise was due Fo reaction center of photosystem II damage or inactivation, Fv, Fv / Fn, Fv / Fm changes are treated in a low temperature was increased, and in a 4 ℃ Shique decreased significantly. Shows a low temperature of 4 ℃ for 3 varieties were severely affected by this will result in decreased photosynthesis,[link widoczny dla zalogowanych], decreased the accumulation of photosynthetic products, thereby affecting the overwintering.
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