RESEARCH ARTICLE
Effects of Different Water Managements on Grain Yield and Grain Quality in Ratoon Rice Cultivation
Sasmita Atika Natalia1, Hiromi Negishi1, Fumitaka Shiotsu1, *
Article Information
Identifiers and Pagination:
Year: 2023Volume: 17
E-location ID: e18743315278254
Publisher ID: e18743315278254
DOI: 10.2174/0118743315278254231117050254
Article History:
Received Date: 21/8/2023Revision Received Date: 4/10/2023
Acceptance Date: 16/10/2023
Electronic publication date: 28/11/2023
Collection year: 2024
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Background:
Ratoon rice production is one of the rice cultivation technologies with the potential to reduce labor and increase yield rate under a shorter cultivation time. However, few studies have focused on the effects of different water management on grain yield and quality.
Objective:
The aim of this study was to explore the effects of different water management on grain yield and quality in ratoon rice.
Methods:
Three water management treatments were followed- Control with the water level 5 cm aboveground, underground water treatment (UWT) with the water level 12 cm below the soil surface, and deep water treatment (DWT) with the water level 20 cm aboveground. The grain yield, yield components, amylose and protein content, and grain characteristics for grain quality were measured.
Results:
During the ratoon season, UWT had the highest grain yield of the three treatments. DWT had the highest ratoon tiller number but had a lower grain yield due to the increase in the number of ratoon tillers. The 1000-grain weight decreased markedly for DWT. With respect to grain quality, ratoon rice has a higher amylose content and a lower protein content than the main crop rice. UWT had the lowest protein content in the ratoon period and a higher grain yield.
Conclusion:
Yield performance in UWT is considered optimal for ratoon rice cultivation. However, grain quality under different water management did not show remarkable results. Therefore, the practice of fertilization during cultivation is recommended to improve grain quality.
