不同来源亚有限型大豆品种适应性的比较研究

COMPARATIVE STUDIES ON ADAPTABILITY OF SEMI-DETERMINATE SOYBEAN VARIETIES FROM DIFFERENT REGIONS

采用地理纬度相似地区选育的、具有代表性的中、美大豆品种,在不同种植密度,施肥水平和种植地区条件下对大豆品种的适应性进行了比较研究。结果表明:在不同种植密度条件下美国俄亥俄州立大学选育的品种综合表现较好,都有较高的产量表现,对种植密度有较好的适应性;而辽宁省选育的品种大多产量较低,受种植密度影响较大,种植密度适应性较差。在磷酸二铵做种肥的条件下,美国俄亥俄州立大学选育的品种表现较好,对肥料的利用率较高;辽宁省选育的品种中,辽豆12号对施肥的反应较好,其它品种相对产量较低,肥力适应范围狭窄。美国俄亥俄州立大学选育的品种在不同地区种植平均产量均显著高于辽宁省选育的品种,两国品种对地区的适应性表现趋势一致,都是鞍山>沈阳>大连。

Comparative studies on adaptability under different seeding rates, different fertilization treatment and different planting locations were carried out with soybean varieties from similar latitude areas in Liaoning, China and Ohio, America. The results were as follows： Under different seeding rates, comprehensive performance of American soybean varieties was better and yield was high;adaptability of seeding rate was better. The most Chinese soybean varieties＂ yield was lower and adaptability of seeding rate was worse. In fertilization treatment, the performance of American soybean varieties were better, utilization of fertilizer was higher. Among Chinese soybean varieties,the Liaodou 12 had a better utilization of fertilizer,and its yield could be increased with the treatment of fertilizer （NH4）zPO4 ,the scope of fertilizer adaptability was narrow for the varieties from Liaoning. Average yield of American soybean varieties, cultivated in different areas, was sig- nificant higher than those of Chinese soybean varieties. The trend of location adaptability of soybean varieties from Liaoning and Ohio was the same,it was Anshan〉 Shenyang〉Dalian.