Miricescu, Alexandra and Byrne, Tomás and Doorly, Catherine M. and Ng, Carl K. Y. and Barth, Susanne and Graciet, Emmanuelle (2021) Experimental comparison of two methods to study barley responses to partial submergence. Plant Methods, 17 (40). pp. 1-15. ISSN 1746-4811

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Abstract

Background: Crop yield is dependent on climate conditions, which are becoming both more variable and extreme in some areas of the world as a consequence of global climate change. Increased precipitation and flooding events are the cause of important yield losses due to waterlogging or (partial) submergence of crops in the field. Our ability to screen efficiently and quickly for varieties that have increased tolerance to waterlogging or (partial) submergence is important. Barley, a staple crop worldwide, is particularly sensitive to waterlogging. Screening for waterlogging tolerant barley varieties has been ongoing for many years, but methods used to screen vary greatly, from the type of soil used to the time at which the treatment is applied. This variation makes it difficult to cross-compare results. Results: Here, we have devised a scoring system to assess barley tolerance to waterlogging and compare two different methods when partial submergence is applied with either water or a starch solution at an early developmental stage, which is particularly sensitive to waterlogging or partial submergence. The use of a starch solution has been previously shown to result in more reducing soil conditions and has been used to screen for waterlogging tolerance. Conclusions: Our results show that the two methods provide similar results to qualitatively rank varieties as tolerant or sensitive, while also affecting plants differently, in that application of a starch solution results in stronger and earlier symptoms than applying partial submergence with water.

Item Type:	Article
Keywords:	Barley; Waterlogging; Screening; Crop improvement;
Academic Unit:	Faculty of Science and Engineering > Biology Faculty of Science and Engineering > Research Institutes > Human Health Institute
Item ID:	16231
Identification Number:	https://doi.org/10.1186/s13007-021-00742-5
Depositing User:	Emmanuelle Graciet
Date Deposited:	05 Jul 2022 14:22
Journal or Publication Title:	Plant Methods
Publisher:	BMC
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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