Effect of popcorn varieties from the Andes on the development of the early, hard-grained gene pool in Central Europe
The ancestors of the early, multi-rowed, hard-grained flint maize varieties found in Central Europe, and also of some of the dent varieties, were in all probability Chutucuno Chico and Chutucuno Grande (Timothy et al., 1961), chilling-tolerant, daylength-insensitive, small-eared, multi-rowed, prolific, hard flint popcorn varieties with reddish-brown kernels originating from the slopes of the Andes and introduced into Hungary in the early 1800s via Italy (Nagyváthy, 1822). In Italy and Hungary these varieties were given the names Cinquantino and Pignoletto. In addition to these Andean sources, a considerable contribution to the hard-grained gene pool was also made by Hungarian flints of Caribbean origin, and to a lesser extent by Southern Dents and Corn Belt Dents, while Northern Flints played little role in its development. These maize varieties were grown chiefly for human consumption (in the form of porridge) and were exported to Italy, Slovenia and Romania. The high price paid for exported maize, the low yield and undesirably long vegetation period of the initial sources, and the need to improve the colour and ear fusarium resistance of commercial maize meant that breeding was begun as early as the 1850s. The data available indicate that in around 1856, probably for the first time in Europe but independently of each other, Pál Németh and Pál Máthé crossed Cinquantino with other varieties in order to produce new varieties. These varieties, and those later selected from them, played a role in the maize production of Hungary, Romania, Yugoslavia, Slovakia and other countries for a period of 100 years. In addition, they probably exerted a significant effect on the early flint gene pools of all European countries where the vegetation period is either extremely short or extremely cool.