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在生产中,经常可以见到高粱灌浆不好,形成秕粒,谓之早衰,常年因此减产10—20％。过去有人认为早衰的原因是“养分倒流”。据牛天堂1980年报道,他从杂交高粱子粒形成过程重量动态、养分运转动态及播期三个方面进行研究,否定了“养分倒流”的论点。认为早衰由病原菌侵染所引起。然而病原物是什么菌?该病发生与品种有无关系?它属于何种侵染类型,是土传的,种传的,还是气传的?有何防治途径?搞清这些问题对于掌握该病发生规律达到防治目的具有重要意义。1984年和1985年我们对高粱早衰现象进行了研究。
In production, we can often see sorghum grouting is not good, the formation of nodules, that premature aging, perennial so cut 10-20%. Some people think the reason for premature aging is “nutrient backwards.” According to Niu Tianteng reported in 1980, he studied the weight dynamics, nutrient running dynamics and sowing date of hybrid sorghum seed formation process, and denied the argument of “nutrient backflow”. Premature aging caused by pathogen infection. However, what kind of bacteria is the pathogen? Does the disease have any relationship with the varieties? What type of infection does it belong to, which is soil-borne, germ-line, or gas? What is the prevention and treatment? The occurrence of disease to achieve the purpose of prevention and control is of great significance. In 1984 and 1985 we studied the phenomenon of sorghum premature aging.