Effecots of Doubled CO2 Level on the Growth and Development of Rice(Oryza sativa L,cv.Aixiangnuo)
大气CO2倍增对水稻生长和发育的影响

Rice plant (Oryza Sativa L,cv. Aixiangnuo) was grown at 350 and 700ppm CO2 open top chambers respectively after transplanting.Some characteristics of growth and development of the plant were observed.Results showed that rice grown at doubled CO2 concentration,compared with that grown at ambient air,its root dry weight increased by 23%,plant height increased by 12%,number of seed set/panicle increased by 29% and grain weight/plant increased by 41%.Current research progress in this area was also discussed.