黑龙江省近二十年来育成大豆品种品质性状变化分析

Changes on Quality Characters of Soybean Cultivars Released during 1988 to 2007 in Heilongjiang Province

对1988—2007年间黑龙江省育成的201个大豆品种的品质与产量性状进行分析。结果表明：各地区育成品种蛋白质和脂肪含量在不同时期均有差异，脂肪含量总体呈上升趋势，蛋白质含量总体呈略微下降趋势。大豆品种脂肪、蛋白含量有着不同的地理分布，其中松哈平原地区蛋白质含量最高，脂肪含量较低，产量较高；东部三江低湿平原脂肪含量最高，蛋白含量较低，产量最高。松哈平原、东部三江低湿平原、北部高寒区大豆品质与产量的综合改良潜力较其它地区大。

Quality and yield characters of 201 soybean cultivars released during 1988 to 2007 in Heilongjiang Province were analyzed, in order to elucidate their evolutionary tendency and improvement potential. Protein and fat content of released soy- bean cuhivars varied with regions and years,and the protein content declined while fat content increased during 1988 to 2007. The protein and fat content of soybean cultivars had obvious geography distribution, as highest protein and lower fat content and higher yield appeared in Songha plain, while highest fat and lower protein content and the highest yield appeared in east low- wet land of Sanjiang plain. The comprehensive improvement potential of quality and yield characters of soybean eultivars released in Songha plain, Sanjiang low-wet plain and North cold area are higher than other regions.