The paper studied the morphology and physicochemical characters of the young seedlings of rapeseed Zhongyou 821 which could endure low phosphorus content under phosphorus sufficiency and deficiency.As indicated by the result,the morphology of rapeseed.Zhongyou 821 under phosphorus deficiency was quite different from that of the control.The euphylla of the aboveground part grew very slow,and the plant was short,the leaf was small and the petiole was thick.The underground taproot was thin and weak;as shown by...