最近,英国伯明翰大学的杰·吉克斯教授等人试验了一种新的辐射育种法:用强烈的射线照射花粉,可以大大地缩短改良品种的周期,减少许多工作量。他们的试验是在烟属植物上进行的。杂交的两个品种在形状和色泽方面各有优劣,优良种性的花粉经过γ射线照射后与相对不良种性品种相交,虽然花粉被γ射线照射过的杂种第二代基本上表现劣性,但卓有成效地得到了合成优性种的一种或几种的新品种,从而意味着任意导入一种或几种遗传因子的可能性。 Recently, Professor Jay Gijs of the University of Birmingham, England, tested a new radiation breeding method: irradiating pollen with strong radiation can greatly shorten the cycle of improved varieties and reduce the workload. Their experiment was conducted on tobacco plants. The two hybrids had their own advantages and disadvantages in shape and color, the pollen of elite species had crossed with the relatively unfriendly varieties after γ-ray irradiation. Although the second generation of hybrid pollen irradiated by γ-rays basically showed inferiority, However, the successful production of one or more new varieties of superior species means the possibility of introducing any one or several genetic factors.