Extensive X-ray and ultraviolet induced mutagenesis efforts (i.e. primitive genetic engineering) during the 1950s produced the modern commercial varieties of grains such as wheat, corn (maize) and barley.
ɛkstˈɛnsɪv ˈɛksɹˈeɪ ænd ˌʊltɹɐvˈaɪəlɪt ɪndˈuːst mjˌuːɾeɪdʒˈɛnᵻsˌɪs ˈɛfɚts ˈaɪ.ˈiː. pɹˈɪmᵻtˌɪv dʒɪnˈɛɾɪk ˌɛndʒɪnˈɪɹɪŋ dˈʊɹɹɪŋ ðə nˈaɪntiːnhˈʌndɹɪd fˈɪfti z pɹədˈuːst ðə mˈɑːdɚn kəmˈɜːʃəl vɚɹˈaɪəɾiz ʌv ɡɹˈeɪnz sˈʌtʃ ɐz wˈiːt, kˈɔːɹn mˈeɪz ænd bˈɑːɹli.