大气CO<sub>2</sub>倍增对水稻生长和发育的影响

大气CO₂倍增对水稻生长和发育的影响

摘要: 矮香糯水稻(Oryza sativa L, )插身后生长在大气（350ppm CO₂）和CO₂倍增（700 ppm CO₂）的开顶式培养室中，结果显示，在CO₂倍增的条件下，矮香糯生长旺盛，根系发达，根系干重增加23%，株高增加12%，每穗结实率增加29%，每株籽粒干重增加41%。本文对目前有关这方面的研究现状进行了讨论。

Abstract: 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.