【摘要】 长江下游以11月至翌年2月为测定适期。测定材料以一年生枝条为宜。栽培品种与砧木品种的各种枝条的耐寒性均与测定的结果相符合。计量单位以下式最为简便:伤害率(%)=(冷冻电导率)/(煮沸率导电)×100%更多还原

【Abstract】 The period from November to February next year is the fitting and propertime for the cold resistance test in the Yangtze estuary.It was found that thepercentage of electrolytes in the leakage from one-year shoots of various culti-vated varieties or stocks tallied with the cold resistance of them.The damagedrate most conveniently measured is as follows:(?)更多还原