Radiação solar global e acumulação de carboidratos solúveis em sorgo sacarino.

Abstract

Sweet sorghum was exposed to different solar radiation conditions belong the cicle on two planting times: september and december.Slopes with different declivities and directions were used for irradiance variations at each planting time. There was high linear relationship between accumulated solar radiation and accumulated soluble carbohydrate in each slope at the two planting times. The mean difference in global incident radiation between the two sorghum cicles was 24% and it was 49% to accumulated soluble carbohidrates.