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大豆陈种子发芽率有时虽可达80—90%,但播种后的出苗率仅有10—20%左右。过去采用的氯三苯基四氮唑法、低温法、呼吸率定量法、ATP定量法等均存在不精确、时间长、花费高、难度大等缺点。最近,美国科学家威尔逊等研究利用挥发性醛类物质定量测定大豆的种子活力,这个方法能够反应大豆种子在贮藏过程中的各种生理生化变化。主要是挥发性醛类物质能够检测出,空气中的氧对贮藏种子脂肪作用的结果,由于脂肪过氧化作用而造成种子退化。该法所需时间短,仪器设备也较简单
Soybean Chen seed germination rate sometimes up to 80-90%, but after sowing the emergence rate of only about 10-20%. In the past using chlorotriphenyl tetrazolium method, cryogenic method, respiratory rate, ATP quantitative methods are imprecise, long time, high cost, difficulty and other shortcomings. Recently, the American scientist Wilson et al. Used volatile aldehydes to quantify soybean seed vigor. This method can reflect various physiological and biochemical changes of soybean seeds during storage. Volatile aldehydes are primarily responsible for the detection of oxygen in the air as a result of the action of stored seed fat, resulting in seed deterioration due to fat peroxidation. The law requires a short time, equipment is also relatively simple