Japanese Journal of Crop Science | |
Photosynthesis of Daughter-Tuber Leaves in Eddoe Population and Its Contribution to Canopy Photosynthesis and Tuber Yield | |
Hideki SUGIMOTO1  | |
关键词: Canopy photosynthesis; 塊茎åŽé‡; Closed chamber system; 個体群光åˆæˆ; ^<13>CO2; サトイモ; Colocasia esculenta(L.) Schott; Daughter tuber leaves; åイモ葉身; Eddoe; 閉鎖系åŒåŒ–ç®±; Tuber yield; | |
DOI : 10.1626/jcs.70.92 | |
学科分类:农业科学(综合) | |
来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan | |
【 摘 要 】
Three types or eddoe plants(Colocasia esculenta(L.) Schott), i.c., daughter-tuber type(cv. Uhan and Ishikawawase), mother-and daughter-tuber type(cv. Akame), and mother-tuber type(cv. Taiwan-imo), we recultivated in a drained paddy field. The daughter-tuber leaves of each cultivar were removed to estimate the role of the leaves. The rate of canopy photosynthesis of cv. Uhan was measured in mid-October using a closed chamber system, and then plant was fed with 13CO2 to estimate the contribution ratio of daughter-tuber leaves to total canopy photosynthesis. The rate of canopy photosynthesis in the plant with and without daughter-tuber leaves was 24.6 and 17.5μmol m-2S-1, respectively. The ccontribution ratio of the photosynthesis of the daughter-tuber leaves to total canopy photosynthecs is was 29.1%. Total tuber yield in control plants was 16% higher and the markctable tuber yield was 34% higher than those in the plants without daughter-tuber leaves. The photosynthate of daughter-tuber leaves greatly contributed to the enlargement of each tuber, and hence tuber weight per plant.
【 授权许可】
Unknown
【 预 览 】
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RO201912010131150ZK.pdf | 1025KB | download |