Downy mildew of millets - An overview
DOI:
https://doi.org/10.14719/pst.4499Keywords:
Downy mildew, millets, Sclerospora graminicola, Peronosclerospora sorghi, Sclerophthora macrosporaAbstract
Amidst global food insecurity, malnutrition, agricultural challenges, and climate change, millet farming is emerging as a viable alternativedue to its high nutritional value, resilience to extreme weather conditions, and adaptability to marginal soils. Often referred to as “super-crops”, millets gained international recognition in March 2021 during the 75th session of the United Nations General Assembly. Millets rank among the most important crops globally, following rice, wheat, maize, and sorghum. However, they are susceptible to more than fifty diseases, with the most destructive being ‘Downy Mildew’. This disease is caused by oomycete pathogens such as Sclerospora graminicola, Peronosclerospora sorghi and Sclerophthora macrospora, posing a significant threat to millet production, with yield losses ranging from 50% to 100%. This review emphasizes the importance of millet and the devastating effects of downy mildew on its yields. It explores the physiological and histological changes induced by the disease, the characterization of effector protein, and the genetic variability in millet populations. Additionally, various management techniques for combating downy mildew are examined, including chemical treatments, induced resistance, organic-based approaches, cultural practices, resistant genotypes, and advancements in nanotechnology. By compiling current knowledge on millet disease and effective management strategies, this review aims to serve as a comprehensive resource for researchers and farmers, supporting sustainable millet farming and improving global food security.
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Plant Science Today is an open access journal. There is no registration required to read any article. All published articles are distributed under the terms of the Creative Commons Attribution License (CC Attribution 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited (https://creativecommons.org/licenses/by/4.0/). Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
