Effects of Abiotic Stress Associated with Climate Change on Potato Yield and Tuber Quality Under a Multi-environment Trial in New Zealand

IF 2.3 3区农林科学 Q1 AGRONOMY Potato Research Pub Date : 2024-03-06 DOI:10.1007/s11540-024-09695-3

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Abstract

In the 2018/19 growing season, a multi-environment trial in Opiki, Hastings, and Ohakune located in three different regions of the North Island of New Zealand was conducted to evaluate responses of selected potato cultivars to abiotic stress associated with climate change. Heat and drought stresses were evident with supra-optimal temperatures (> 25 °C) in Opiki and Hastings and sub-optimal rainfall (< 500 mm) in Opiki, which influenced the different morpho-physiological characteristics of the potato crop, ultimately affecting yield and tuber quality. These abiotic stresses also increased the incidence of malformation, growth cracks, and second growth in tubers reducing the total and marketable tuber yields by 43% and 45%, respectively. In addition, the genotype × environment analysis showed that Ohakune had the most favourable environmental conditions for potato production since all cultivars in this site had superior marketable tuber yields. ‘Taurus’ was the most stable and adaptable cultivar across trial sites (wide adaptation), whilst ‘Hermes’ and ‘Snowden’ were more adapted under Opiki and Hastings conditions (specific adaptation), respectively. As established in this study, heat and drought stresses have significant effects on the morpho-physiology, yield, and tuber quality of commercial potato cultivars in New Zealand.

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新西兰多环境试验中与气候变化相关的非生物胁迫对马铃薯产量和块茎质量的影响

摘要 2018/19生长季，在位于新西兰北岛三个不同地区的Opiki、Hastings和Ohakune进行了多环境试验，以评估所选马铃薯栽培品种对与气候变化相关的非生物胁迫的响应。热胁迫和干旱胁迫在奥皮基和黑斯廷斯很明显，温度超过了最佳温度（25 °C），在奥皮基降雨量低于最佳降雨量（500 毫米），这影响了马铃薯作物的不同形态生理特征，最终影响了产量和块茎质量。这些非生物胁迫还增加了块茎畸形、生长裂缝和二次生长的发生率，使块茎总产量和可销售产量分别减少了 43% 和 45%。此外，基因型×环境分析表明，Ohakune 具有最有利于马铃薯生产的环境条件，因为该地点的所有栽培品种都具有优异的块茎销售产量。Taurus "是各试验点中最稳定、适应性最强的栽培品种（广泛适应性），而 "Hermes "和 "Snowden "则分别更适应奥皮基和黑斯廷斯的条件（特殊适应性）。本研究表明，高温和干旱胁迫对新西兰商业马铃薯栽培品种的形态生理学、产量和块茎质量有显著影响。

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来源期刊

Potato Research AGRONOMY-

CiteScore

5.50

自引率

6.90%

发文量

审稿时长

>12 weeks

期刊介绍： Potato Research, the journal of the European Association for Potato Research (EAPR), promotes the exchange of information on all aspects of this fast-evolving global industry. It offers the latest developments in innovative research to scientists active in potato research. The journal includes authoritative coverage of new scientific developments, publishing original research and review papers on such topics as: Molecular sciences; Breeding; Physiology; Pathology; Nematology; Virology; Agronomy; Engineering and Utilization.