一个水稻高叶绿素基因的生物学特性研究

The biological effect of a high chlorophyll content gene in rice

用重庆市农业科学研究所发现的一个水稻高叶绿素基因为材料,比较研究了其近等基因系在不同时期的叶绿素a、叶绿素b和总叶绿素含量,不同光合有效辐射下的光合作用速率;生物产量,经济产量,外观米质的垩白粒率。结果表明,该基因能提高叶绿素b含量1倍以上,总叶绿素含量25%左右,光合作用速率20%左右;提高生物产量和经济产量16%以上,降低垩白粒率17%左右。

The biological effects of near-isogenic lines of rice mutants with high chlorophyll content were studied.The results showed the high chlorophyll gene can increase chlorophyll b by 1 times, total chlorophyll by 25 %, the rate of photosynthesis by 20 %,and biomass and grain yield by 16 %,and decreased chalky grain rate by 17 %.