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建国四十年来,山东作物育种成绩斐然,粮、棉、油等主要作物进行了4～5次品种更新,主要果蔬品种也不同程度地更新1～3次,加以栽培措施的配套,有力地推进了山东种植业生产不断发展。然而,近年作物育种却步入爬坡阶段,影响到种植业生产徘徊不前。一因已育成应用品种的性能已达到相当高的水平,今后选育新品种必须具备更高的丰产性,更强的抗逆性,更优良的品质,这就为育种带来了更大难度。二因育种工作本身存在不足:育种技术基本停留
In the 40 years since the founding of the People’s Republic of China, crop breeding in Shandong has achieved remarkable results. The main crops such as grain, cotton and oil have been renewed 4 to 5 times. Major fruit and vegetable varieties have also been renewed to varying degrees by 1 or 3 times, and their cultivation measures have been vigorously promoted Shandong planting continuous development of production. However, in recent years, crop breeding has entered the climbing stage, affecting the production of farming stagnated. Because of the performance of breeding varieties has reached a very high level of future breeding new varieties must have higher yield, stronger resistance, better quality, which brings more difficult breeding . Second, due to lack of breeding work itself: basic breeding technology stay