大豆品种产量稳定性研究 Ⅱ.多年份品种产量试验

A STUDY ON SEED YIELD STABILITY OF SOYBEAN CULTIVARS Ⅱ.MULTIYEAR YIELD EXPERIMENT OF CULTIVAR

１９８９－１９９３年以不同熟期不同结荚习性的九个大豆品种为材料，在吉林省公主岭研究了大豆品种籽粒产量稳定性与品种生育期、结荚习性的关系。试验结果表明在供试条件下，即生育期间５－９月份降水量为３７０－７４０ｍｍ，有效积温为３０００℃左右时，以中熟、亚有限结荚习性品种为最稳产。在不同气候条件的年份组合的平均表现中，中熟品种的稳产性比早熟品种、中晚熟品种好，但中熟品种中３种结荚习性间的稳产性差异不明显。在不适应熟期中，稳产性顺序是无限＞亚有限＞有限型品种。有限性品种在以丰年为主配合以中年的年份组合中表现出较好的稳产性。中晚熟亚有限和无限型品种则在以欠年为主配以中年的年份组合中表现出最好的稳产性，此种差异在早熟品种中不存在。对丰欠年的气候条件进行了讨论。

soybean cultivars that had different growing period and pod bearing habit were useded to study relationship between seed yield stability and growing period, pod bearing habit of soybean cultivars. Experiment results showed that in the middle part of Jilin province, middle maturing and simideterminate cultivar was most stable under conditions of 370-740mm preciptation and around 3000℃ accumulation temperature from May to Sep..Under conditions of combination of annual different climate conditions, mean performance of seed yield stability of middle maturing cultivars was better than that of middle-late and early cultivars. The difference among different pod bearing habit cultivars in middle maturing cultivars was not obvions. Stability order for cultivars with non-adaptable growth period was indeterminate>simideterminate>determinate cultivars. Determinate cultivars had better yield stability primarily in good years and secondrily in middle years. Simideterminate and indeterminate cultivars with middle-late maturity had better yield stability primarily under conditions of bad years and secondarily in middle years. There were no such difference in early cultivars.