文献类型： 外文期刊

作者： Hasanaliyeva, Gultekin ¹ ; Giannakopoulou, Ourania ¹ ; Wang, Juan ¹ ; Baranski, Marcin ² ; Sufar, Enas Khalid ¹ ; Knutt, Daryl ¹ ; Gilroy, Jenny ¹ ; Shotton, Peter ¹ ; Leifert, Halima ¹ ; Srednicka-Tober, Dominika ¹ ; Cakmak, Ismail ⁵ ; Ozturk, Levent ⁵ ; Zhao, Bingqiang ⁶ ; Iversen, Per Ole ⁷ ; Volakakis, Nikolaos ¹ ; Bilsborrow, Paul ⁹ ; Leifert, Carlo ⁷ ; Rempelos, Leonidas ¹ ;

作者机构： 1.Newcastle Univ, Sch Agr Food & Rural Dev, Nafferton Ecol Farming Grp, Newcastle Upon Tyne NE1 7RU, England

2.Shanghai Jiao Tong Univ, Coll Hlth Sci & Technol, Sch Med, Sch Med, Shanghai, Peoples R China

3.Polish Acad Sci, Nencki Inst Expt Biol, BRAINCITY, Pasteura 3, PL-02093 Warsaw, Poland

4.Warsaw Univ Life Sci, Inst Human Nutr Sci, Nowoursynowska 159c, PL-02776 Warsaw, Poland

5.Sabanci Univ, Fac Engn & Nat Sci, TR-34956 Istanbul, Turkiye

6.Chinese Acad Agr Sci CAAS, Inst Agr Resources & Reg Planning IARRP, Beijing 100081, Peoples R China

7.Univ Oslo, Inst Basic Med Sci, Dept Nutr, N-0316 Oslo, Norway

8.Oslo Univ Hosp, Dept Haematol, N-0424 Oslo, Norway

9.Newcastle Univ, Sch Nat & Environm Sci, Newcastle Upon Tyne NE1 7RU, England

10.Southern Cross Univ, SCU Plant Sci, Mil Rd, Lismore, NSW 2480, Australia

11.Univ Lincoln, Lincoln Inst Agrifood Technol, Riseholme Pk, Lincoln LN2 2LG, Lincs, England

关键词： potato; late blight; tuber yield; tuber mineral content; Cd; fertilization; crop protection; low-input; conventional; organic

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Modern potato varieties from high-input, conventional farming-focused breeding programs produce substantially (up to 45%) lower yields when grown in organic production systems, and this was shown to be primarily due to less efficient fertilization and late blight (Phytophthora infestans) control methods being used in organic farming. It has been hypothesized that the breeding of potato varieties suitable for the organic/low-input sector should (i) focus on increasing nutrient (especially N) use efficiency, (ii) introduce durable late blight resistance, and (iii) be based on selection under low-input conditions. To test this hypothesis, we used an existing long-term factorial field experiment (the NEFG trials) to assess the effect of crop management practices (rotation design, fertilization regime, and crop protection methods) used in conventional and organic farming systems on crop health, tuber yield, and mineral composition parameters in two potato varieties, Sant & eacute; and Sarpo mira, that were developed in breeding programs for high and low-input farming systems, respectively. Results showed that, compared to Sant & eacute;, the variety Sarpo mira was more resistant to foliar and tuber blight but more susceptible to potato scab (Streptomyces scabies) and produced higher yields and tubers with higher concentrations of nutritionally desirable mineral nutrients but lower concentrations of Cd. The study also found that, compared to the Cu-fungicides permitted for late blight control in organic production, application of synthetic chemical fungicides permitted and widely used in conventional production resulted in significantly lower late blight severity in Sante but not in Sarpo mira. Results from both ANOVA and redundancy analysis (RDA) indicate that the effects of climatic (precipitation, radiation, and temperature) and agronomic (fertilization and crop protection) explanatory variables on crop health and yield differed considerably between the two varieties. Specifically, the RDA identified crop protection as a significant driver for Sant & eacute; but not Sarpo mira, while precipitation was the strongest driver for crop health and yield for Sarpo mira but not Sant & eacute;. In contrast, the effect of climatic and agronomic drivers on tuber mineral and toxic metal concentrations in the two varieties was found to be similar. Our results support the hypothesis that selection of potato varieties under low agrochemical input conditions can deliver varieties that combine (i) late blight resistance/tolerance, (ii) nutrient use efficiency, and (iii) yield potential in organic farming systems.