测定了二倍体(2n)和同源四倍体(4n)自交系和杂交甜菜品系的花粉特性,为利用花粉作为一种试验的组织提供必要的信息。采用活体染色和试管发芽测定,2n和4n的花粉生活力不同。20植株的花粉直径(20.8μm)明显小于4n植株花粉(25.9μm)。在7个甜菜2n,品系中花粉直径幅度为19.3至22.5μm,而4n品系花粉直径幅度为23.4至27.4μm。2n和4n(来自2n和4n植株) 花粉的平均体积分别为4708和9090μm~3。4n花粉每毫克有 Pollen characteristics of diploid (2n) and autotetraploid (4n) inbred lines and hybrid beet lines were determined to provide the necessary information for the use of pollen as a test tissue. The viability of pollen of 2n and 4n varied with in vivo staining and tube germination. The pollen diameter (20.8 μm) of 20 plants was significantly less than that of 4n plants pollen (25.9 μm). In 7 beet 2n, the pollen diameter ranged from 19.3 to 22.5 μm in the line, while the 4n line had a pollen diameter range from 23.4 to 27.4 μm. The average volume of pollen of 2n and 4n (from 2n and 4n plants) were 4708 and 9090μm ~ 3.4n, respectively, pollen per milligram