Photosynthesis of feral sugarcane (Saccharum spontaneum) collected in the Southwest Islands in Japan
1995
Nose, A. | Higashi, R. | Nakama, M. (University of the Ryukyus, Okinawa (Japan). College of Agriculture)
Fifteen traits related to photosynthesis were investigated on 33 lines of Saccharum spontaneum collected in the Southwest Islands in Japan. Significant differences (P0.01) were found among the lines for each of the fifteen traits. Photosynthetic carbon exchange rate (PCER) under high light conditions (2000 micro E/mi/s) showed a wide variation ranging from 20.46 to 81.56 mg CO2/square dm/h. Principal component analysis (PCR) classified the 33 lines of S. spontaneum on their native Island. Distribution of the groups by PCA also reflected the geographical differences among the native island. PCER of S. spontaneum under 2000 micro E/mi/s strongly correlated with stomatal conductance (r
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