摘要
本研究发现：川谷×薏苡Ｆ１花粉母细胞减数分裂过程中．在中期Ⅰ和后期Ⅰ，较多的母细胞中出现了落后染色体，并有多种其他异常现象。Ｆ１花粉败育率高达７９．５％，败育多发生在单核期，有两种败育类型。
This study showed that the meiosis of F1 hybird of Coix lacryma-jobi L.×C. lacry-ma-jobi L. var. friumentacea Makino was irregulat. A5t MI and AI there were iaggingchromosome in many pollen mother cells.Other kinds of irregularity of meiotic chromo-some behavior were observed. The pollen abortion of F1 hybrids was 79.5 Per cent.Ther were two types of pollen abortion which occured at single nucleus microsponestage.
关键词
薏苡
减数分裂
花粉
川谷
杂交
Coix Lacryma-jobi
Cross
Meiosis
Pollen abortion
