收获期对不同生育期高油大豆油分及产量的影响

利用不同生育期高油大豆品种的收获期试验，来研究收获期对不同生育期高油大豆品种油分及产量的影响。采用分期收获的方法对6个不同生育期高油大豆品种进行处理，利用近红外谷物品质分析仪进行油分分析，DPS数据处理系统进行数据处理。试验表明，收获期对大豆油分含量和产量有显著的影响。从初熟期开始，随着收获期的延迟，各品种油分含量呈先上升后下降有规律的变化趋势，6个品种的油分含量变化幅度为0.37-0.87个百分点，每个品种都有一个最佳的收获时期以获得最高的油分含量，但油分含量变化情况和品种的生育期相关性不大，是由品种本身的遗传特性决定的。播期对产量也有较明显的影响作用，四个生育期相对较长的品种黑农44、垦农19、合丰48号和合丰47号产量变化较大，达到了极显著水平，而两个早熟品种的产量变化较小，不显著，产量变化总体趋势是晚熟品种＞中熟品种＞早熟品种。不同生育期的高油品种适期收获能获得较高的油分和产量。

Study on the Influence of harvest time on the oil and Yield of different mature period high-oil Soybean

The research showed that harvest time had the significant effect on oil content and yield of high-oil soybean. With the delaying of the harvest time, the content of oil increased the maximum value at first, and then dropped. The ranges of oil content of the six varieties varied from 0.37 to 0.87 percentage point, the oil content variation of Heinong44 reached very significant different level, Hefeng48 and Hefeng40 reached significant different level. The harvest time had the significant effect on the yield. The yield of four late-maturing varieties increased first, then decreased, and reached very significant different level, but the harvest time have little effect on the two early-maturing varieties.