"Lysenko himself spent much time denouncing academic scientists and geneticists, claiming that their isolated laboratory work was not helping the Soviet people. By 1929 Lysenko's skeptics were politically censured, accused of offering only criticisms, and for failing to prescribe any new solutions themselves. In December 1929, Soviet leader Joseph Stalin gave a famous speech praising "practice" above "theory", elevating the political bosses above the scientists and technical specialists. Though for a period the Soviet government under Stalin continued its support of agricultural scientists, after 1935 the balance of power abruptly swung towards Lysenko and his followers. Lysenko was put in charge of the Academy of Agricultural Sciences of the Soviet Union and made responsible for ending the propagation of "harmful" ideas among Soviet scientists. Lysenko served this purpose by causing the expulsion, imprisonment, and death of hundreds of scientists and eliminating all study and research involving Mendelian genetics throughout the Soviet Union. This period is known as Lysenkoism. He bears particular responsibility for the persecution of his predecessor and rival, prominent Soviet biologist Nikolai Vavilov, which ended in 1943 with the imprisoned Vavilov's death by starvation. In 1941 Lysenko was awarded the Stalin Prize."
[eliminating all study and research involving Mendelian genetics throughout the Soviet Union.]
Fast forward a couple of decades to the Soviet Cesium-powered "Gamma Grain" Tractor:
Early in 2002 the IAEA learned of an experimental Soviet-era agricultural project called Gamma Kolos. (Kolos, a Russian word, refers to grain.) In the program, which started in the 1970s but was abandoned, tractors fitted with containers of cesium 137 (and lead shielding to protect the driver) irradiated wheat seeds before sowing them, in an attempt to induce beneficial mutations in the crops. The radiation was also applied to grain after harvest, to prevent it from germinating. A total of ten of the containers have been recovered in Georgia, Moldova and Ukraine; no one knows how many more are unaccounted for. "