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2009和2010年研究了吉林省1923～2004年育成的22个主栽大豆品种在R2、R4、R6期大豆伤流液重量与地上器官生物量的变化及其关系。结果表明:不同育成年份品种的根系伤流液重量和地上部生物量品种间存在显著差异;根系伤流液重量与地上部各器官生物量均随着育成年代的推进而增加,且二者之间呈显著正相关,表明大豆品种的遗传改良使地上部分生物量增加的同时,也导致了根系活力的提高。大豆品种根系伤流液重量与地上部分生物量在R2、R4、R6 3个时期均呈正相关,其中R4时期达到显著水平,伤流液重量与茎、叶片生物量在R4期均呈显著正相关。地上部分生物量与根系伤流液重量的比值在各时期均无明显变化,表明大豆品种的遗传改良过程中地下根系与地上部分器官是协同演进的。
In 2009 and 2010, the changes of the weight and aboveground biomass of 22 soybean cultivars from 1923 to 2004 in Jilin Province during the R2, R4 and R6 seasons were studied. The results showed that there was a significant difference between the root traumatic fluid weight and the aboveground biomass in different breeding years. The root traumatic fluid weight and aboveground organ biomass increased with the advancing age, and both There was a significant positive correlation between them, indicating that the genetic improvement of soybean varieties led to an increase of above-ground biomass while also leading to an increase of root activity. The root trauma fluid weight of soybean cultivars was positively correlated with aboveground biomass in R2, R4 and R6 periods, with a significant level in R4 and a significant positive correlation between stem weight and stem biomass and leaf biomass in R4 . The ratio of aboveground biomass to root traumatic fluid weight did not change significantly during each period, indicating that underground roots and aboveground organs co-evolved during the genetic improvement of soybean cultivars.