The photosynthetic characteristics of Camellia fluviatilis were studied by LI -6400 (Li-Cor Inc, USA) portable photosynthesis system. The results showed that the curves of diurnal variation in Pn (net photosynthetic rate) had a peak at about 13:00 pm, and reached to 18.65 μmol·m-2·s-1; light compensation point of photosynthesis of C. fluviatilis in un-folding leaves was 12 µmol·m-2·s-1, light saturation point of photosynthesis was 500 µmol·m-2·s-1. The correlation analysis showed that: (1) The Pn of C. fluviatilis had extremely significant positive correlation (P≤0.01) with light intensity and air temperature, the correlation coefficients were 0.715 and 0.939 respectively; (2) There was significant negative correlation between Pn of C. fluviatilis and intercellular CO2 concentration (P≤0.01), the correlation coefficient was -0.752; (3) The Pn of C. fluviatilis also had a negative correlation with the atmosphere CO2 concentration (P≤0.05), correlation coefficient of which was -0.605.
YANG Ya-hui
,
HUANG Yong-fang
. Study on Photosynthetic Characteristics of Camellia fluviatilis[J]. Subtropical Plant Science, 2014
, 43(04)
: 281
-285
.
DOI: 10.3969/j.issn.1009-7791.2014.04.003
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