西藏不同芜菁品种生长发育的分析比较

Comparative Analysis of Growing Development of Different Turnip Varieties in Tibet

分别对采集于西藏拉萨市尼木县、山南市曲松县的2个地方芜菁品种苗期、肉质根膨大期和收获期3个生育时期的地上部鲜重、地下部鲜重、株高、叶片长宽比、叶面积以及叶片叶绿素相对含量进行测定。结果表明,西藏不同芜菁品种不同生育时期的生长发育指标间均在一定程度上存在明显差异,其中拉萨市尼木县地方芜菁品种表现型较好,可进一步作为开发利用西藏芜菁种质资源的材料。

The trial is assaied on the fresh weight of upper ground,fresh weight of underground,plant height,leaf length and width ratio,leaf area and relative content of chlorophyll in leaves of two local turnip(Brassica rapa L.)varieties in three growth stages of seedling,fleshy root bulge and harvest,which were collected from Nyemo county,Lhasa and Qusum county,Shannan.The results showes that there was a significant difference between the growth and development indexes at the same period of birth,of which the local turnip varieties in Nyemo county,Lhasa were better,and could be further used as the materials for the development and utilization of the germplasm resources of the turnip in Tibet.