【摘要】 821属半冬性发育型,具多抗性,产量潜力大,增产效果稳定,生育期适宜,生育组成合理,适应性强,特异性明显。821的植物学结构是丰产性的基础,多抗性和合理的生育组成是丰产性充分发挥经济效应的条件。丰产性,多抗性和合理的生育组成是构成821高产、稳产的基本性状结构。更多还原

【Abstract】 821 is the type of semi-winter developmental rapeseed.It has multiple resistances,high and stable yield,optimal growth duration reasonable development composition,wide adaptabilities and apparent specialities. The botanical structure of 821 is the foundation of high yield.Multiple resistances and reasonable development composition are the conditions to make the characteristics of high yield produce sufficiently economic effects.Characteristics of high yield,multiple resistances and reasonable development composition constitute the fundamental characteristics of high and stable yield of 821.更多还原