马铃薯是生育期短,产量高,适应性强,用途广的粮菜兼用作物。目前,我国马铃薯的单产及淀粉含量均不算高。为了提高马铃薯的单产及品质,我们于1983～1985年选用早熟和中晚熟共19个品种进行了不同品种产量构成因素的分析,其中早熟品种趋势明显,现将其研究结果报告如下: 材料与方法供试材料19份,其中早熟品种有:早白、男爵、红眼圈(CK)3种;中晚熟品种有: Potato is a short growing period, high yield, adaptability, wide use of food and crops. At present, China’s potato yield and starch content are not high. In order to improve the yield and quality of potato, we used 19 varieties of early maturity and middle-late maturity from 1983 to 1985 to analyze the yield components of different varieties. Among them, the trend of early maturing varieties was obvious. The results of their research are reported as follows: Materials and Methods The test materials 19, of which precocious varieties: early white, baron, red eye (CK) 3; late-maturing varieties are: