Wang Ying, Rashid Muhammad Abdul Rehman, Liang Shumin, Ali Sahito Zulfiqar, Yang Ju, Li Zhou, Hu Zuo, Pan Zhechao, Sui Qijun
Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China.
Yunnan Technology Innovation Center of Potato (Under Preparation), Kunming, China.
PLoS One. 2025 Aug 7;20(8):e0328675. doi: 10.1371/journal.pone.0328675. eCollection 2025.
Sustainable agriculture has made significant contributions to both food security and global economic growth. Development of new cultivars and identifying and utilizing the yield potential of existing gemplasms are two key options for sustainable crop production. In this study, field trials and a new plant growth stimulator model developed by the International Potato Center called "Solanum" was used to assess the yield potential and 'yield gaps' of three potato cultivars in spring, autumn, and early spring seasons in southwestern China. The results showed that the average potential yield of potato crops in spring, early spring, and autumn seasons was 125.6 t/ha, 56.40 t/ha, and 45.30 t/ha with a gap from the potential yield of 107.30 t/ha, 36.70 t/ha, and 32.10t/ha, respectively. Further analysis revealed that the late blight disease was the main cause of large yield gap in spring season, whereas inadequate rain fall was the the major factor impacting the actual yield of potato crops in autumn and early spring seasons. Therefore, we report for the first time, that the spring potato in Yunnan Province, southwestern China has the highest potential yield in the world, and that extending growing season coupled with managing late blight can increase actual yield by 115%. The high yield potential of spring potato could be very beneficial to the local economy and add an enormous pelf and prosperity to the region.
可持续农业对粮食安全和全球经济增长都做出了重大贡献。培育新品种以及识别和利用现有种质的产量潜力是实现作物可持续生产的两个关键途径。在本研究中，通过田间试验以及国际马铃薯中心开发的名为“Solanum”的新型植物生长刺激模型，对中国西南部三个马铃薯品种在春季、秋季和早春季节的产量潜力和“产量差距”进行了评估。结果表明，春季、早春和秋季马铃薯作物的平均潜在产量分别为125.6吨/公顷、56.40吨/公顷和45.30吨/公顷，与潜在产量的差距分别为107.30吨/公顷、36.70吨/公顷和32.10吨/公顷。进一步分析表明，晚疫病是春季产量差距大的主要原因，而降雨不足是影响秋季和早春马铃薯作物实际产量的主要因素。因此，我们首次报告，中国西南部云南省的春马铃薯具有世界上最高的潜在产量，延长生长季节并防治晚疫病可使实际产量提高115%。春马铃薯的高产量潜力对当地经济非常有益，可为该地区带来巨大财富和繁荣。
