While many studies on zebra chip (ZC) disease in potatoes have focused on the epidemiology of the disease and the characterization of infected potato plants, this study quantifies the impact of ZC disease on crop response and investigates the relationship between irrigation level and ZC disease severity. In this two-year study chipping potatoes were planted under a variable rate irrigation center pivot sprinkler using a split-plot design with a 2 × 3 factorial combination of ZC disease level (diseased and non-diseased) and irrigation levels of 100%, 80% and 60% replenishment of soil water depletion to field capacity, designated I₁₀₀, I₈₀ and I₆₀. Crop response of tuber yield, evapotranspiration (ET_c), crop water productivity (CWP) and irrigation water productivity (IWP) from ZC diseased plots were compared with non-diseased (control) plots. Tuber yield and CWP in the infested plots were significantly reduced by at least 58% in 2018 and by 21% in 2019 as compared with results in the control plots. Year significantly affected crop response in the control plots, however, crop response in the ZC diseased plots was devastative to potatoes from year to year. There was no interaction between irrigation level and ZC disease occurrence. In both years, stomatal conductance measurements in ZC diseased plants were reduced 35 and 44 days after infection as compared with control plants. Since irrigation did not lessen the severity of ZC disease, as soon as diseased plants are identified within a field, withholding irrigation to the affected areas could improve IWP at the field level. Future studies should consider the use of thermal imaging or spectral reflectance of the plant canopy for spatiotemporal detection of ZC disease as early as possible in the growing season.

虽然许多关于马铃薯斑马芯片 (ZC) 病害的研究都集中在该病害的流行病学和受感染马铃薯植物的特征上，但本研究量化了 ZC 病害对作物反应的影响，并调查了灌溉水平与 ZC 病害严重程度之间的关系. 在这项为期两年的研究中，切片土豆种植在可变速率灌溉中心枢轴喷头下，使用裂区设计，ZC 疾病水平（患病和非患病）和灌溉水平为 100%，80 的 2 × 3 因子组合% 和 60% 的土壤水分消耗补充到田间持水量，指定为 I ₁₀₀、I ₈₀和 I ₆₀。块茎产量、蒸散量 (ET _{c ) 的作物响应})、ZC 病害地块的作物水分生产力 (CWP) 和灌溉水生产力 (IWP) 与未病害（对照）地块进行了比较。与对照地块的结果相比，受侵染地块的块茎产量和 CWP 在 2018 年和 2019 年显着降低了至少 58% 和 21%。年份显着影响对照地块的作物响应，然而，ZC 病害地块的作物响应年复一年地对马铃薯造成破坏。灌溉水平与ZC病发生之间没有交互作用。在这两年中，与对照植物相比，ZC 病害植物的气孔导度测量值在感染后 35 天和 44 天都降低了。由于灌溉并没有减轻 ZC 病害的严重程度，一旦在田间发现病株，对受影响地区不进行灌溉可以提高田间的 IWP。未来的研究应考虑在生长季节尽早利用植物冠层的热成像或光谱反射率对 ZC 病害进行时空检测。