【摘要】 采用直观分级及生物统计方法，分析了甘蓝型黄籽油菜粒色性状表现的不稳定性变化。基本规律是，粒色变化随贮藏物质的流向，由源头一端的深色向末稍一端的浅色变化。即由植株的主轴和上部分枝向基部分枝，由主轴及分枝的下部角果向主轴及分枝的上部角果，由角果的柄端籽粒向喙端籽粒方向，粒色由深变浅，千粒重也由大变小更多还原

【Abstract】 The instability of seed color in yellow seed Brassica napus was studied with visual class and biostatistical methods.The results showed that the expression of seed color in yellow seed B. napus varied with flow direction of storage materials during seed formation phase,from darker color of the material source to lighter color of the distal,namely,from the lower pods to the upper pods in the rechis and branches and from seeds near stalk side to the near toptip.The seed color varied from darker color to lighter color as well.The thousand seed weight also varied from heavy to light.更多还原