1940 जिथायनिफ्राय एखुथा आखुथायफोरनि थाखाय आसा-खालामबोनाय, बिदिन्थि हिसाबै थायनाय, पुष्टि, रानस्राव, जिउसा आरो बेराम सहायग्रा, गममायनि साबसिन फोलेरखौ जोनोमारि फोलेरफोरनिफ्राय बानायनाया, सेथि-फोलेर हाइब्रिदफोर जाबाय।
Since the 1940s the best strains of maize have been first-generation hybrids made from inbred strains that have been optimized for specific traits, such as yield, nutrition, drought, pest and disease tolerance.