It has certain practical value in production that varieties or strains of rice with higher chlorophyll content as well as with lower Chl a/b ratio are selected on mountain area like guizhou where intensity of solar radiation is lower.

• 选用叶绿素含量适当高而a/b比率较低的水稻品种或品系,在太阳辐射强度较低的地区(如贵州山区)是有一定生产实用价值的。