南斯拉夫的主要作物是玉米、小麦、马铃薯、向日葵、甜菜等。其中玉米面积最大,为230万公顷,平均单产为4.5吨(合每亩600斤),比1946年单产(每公顷1吨)增加3.5倍,比1969—1978年十年平均单产(每公顷3.5吨)增加28.5％。在将近30年的时间里,南斯拉夫共培育了150个玉米杂交种应用于生产;生产的玉米杂交种种子除满足本国需要外,有三分之二经销欧、亚、非三大洲约20个国家。南斯拉夫的玉米育种进展如此迅速、成效如此显著,原因何在? 一、不甘落后,勇于创新 Yugoslavia’s main crops are corn, wheat, potatoes, sunflowers, sugar beet and so on. The largest corn was 2.3 million hectares with an average yield of 4.5 tons (600 kg per mu), an increase of 3.5 times as much as the 1946 yield (1 tonne per hectare) and the average yield per hectare of 1969-1978 Ton) increased by 28.5%. For nearly 30 years, Yugoslavia has cultivated 150 maize hybrids for production; two thirds of its hybrid corn seeds have been exported to about 20 countries in Europe, Asia and Africa, in addition to meeting their own needs. . Yugoslavia’s maize breeding so rapid progress, the effect is so significant, why? First, not to be behind, the courage to innovate