马铃薯薯块形成期缺水会减少最终薯块个数和加重对疮痂病(Streptomyces scabies)敏感品种的危害。因此,为了确保较多的薯块个数和减轻病害,能确定薯块形成始期是很重要的。但以往测定多为破坏性取样。本文评价确定薯块形成始期的积温法,从而提供一种对此进行非破坏性的测定方法。这种方法分两个步 Water shortages during potato tuber formation reduce the number of final tubers and aggravate the damage to susceptible varieties of Streptomyces scabies. Therefore, in order to ensure a greater number of tubers and reduce disease, it is important to determine the onset of potato tuber formation. But in the past mostly destructive sampling. This article evaluates the temperature-accumulated method of determining the onset of tuberous to provide a non-destructive assay. This method is divided into two steps