PT - JOURNAL ARTICLE AU - Patel, Dipika S. AU - Kirti, Bardhan AU - Patel Dhiraji, P AU - Vipulkumar, Parekh AU - Suchismita, Jena AU - Narwade Ajay, V. AU - Chhatrola, Harshadkumar N TI - Does plant root architecture respond to potassium nutrition under water stress? A case from rice seedling root responses AID - 10.1101/2020.08.05.237685 DP - 2020 Jan 01 TA - bioRxiv PG - 2020.08.05.237685 4099 - http://biorxiv.org/content/early/2020/10/13/2020.08.05.237685.short 4100 - http://biorxiv.org/content/early/2020/10/13/2020.08.05.237685.full AB - The root is the sensing organ for potassium (K) and water availability. We evaluated whether K availability influences root architecture and contributes to drought tolerance under moisture stress. Rice seedling growth was severely affected by low K availability under water stress, and the substantial reductions in root projected area, maximum width, and width to depth ratio were observed. High K availability helps maintain root top and bottom angles and reduces root steepness under mild water stress, but over K nutrition does not ensure higher seedling growth. Under severe water stress, the steepness was more regulated by water than K availability.Competing Interest StatementThe authors have declared no competing interest.