【摘要】 为研究褪黑素对不同南方大豆品种的调控效应，以中豆41、中豆44、皖豆28、油6019和中豆63共5种南方大豆品种为材料，于初花期和鼓粒期进行叶面喷施褪黑素处理。比较褪黑素处理对大豆光合特性、农艺性状、产量及其构成因素、品质等方面的影响。结果表明，外源褪黑素可以提高不同南方大豆品种叶片的叶绿素含量、光合速率、蒸腾速率以及气孔导度，进而调节大豆光合作用；褪黑素处理可显著增加大豆植株的单株荚数、单株粒数和单株粒重，从而提高大豆整体产量水平；同时对各南方大豆品种蛋白质和脂肪含量无明显影响。更多还原

【Abstract】 Five soybean varieties(Zhongdou 41,Zhongdou 44,Wandou 28,You 6019 and Zhongdou 63)were used as materials to study the regulation effects of melatonin on different soybean varieties in southern China. Foliar spraying of melatonin was carried out at the initial flowering stage and bulking stage. To compare the effects of melatonin treatment on photosynthetic characteristics,agronomic traits,yield and its components,quality and other aspects of soybean. Melatonin treatment could significantly increase pod number per plant,grain number per plant and grain weight per plant,thus improving the overall yield level of soybean. At the same time,the protein and fat contents of soybean varieties in south China were not significantly affected.更多还原