Physiology and Molecular Ecology of Ratoon Rice
A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Molecular Biology".
Deadline for manuscript submissions: 20 January 2025 | Viewed by 6843
Special Issue Editors
Interests: crop allelopathy; crop physiology; crop cultivation and farming system
Special Issue Information
Dear Colleagues,
Ratoon rice is a cropping system, in which we get the promising production of the additional crop from the stubble after the harvest of the main crop. Besides of high grain yields, improved grain quality and better economic efficiency, ratoon rice shows resource efficient, labor saving and environmentally friendly. As an ancient cropping practice with about 1700-year history, ratoon rice infuses fresh vigor into rice production, and becomes more and more popular worldwide, not only on agricultural performance but also on scientific researches. In the past decades, agronomic, physiological and ecological studies have been made significant progresses on characteristics of ratoon rice and underlying mechanism.
Since ratoon rice is taking advantage of regeneration characteristics of dormant axillary buds, ratoon ability has been proved to be fundamental to the yield of ratoon season, which depends the fine regulation of signaling network from both the endogenous phytohormone and environmental factors. Recently, stubble quality is established as a guiding indicator to guarantee substantial ratoon-season yield. Several studies have revealed that stubble height, nitrogen fertilization and dry-wet alternate irrigation would significantly determine the ratoon ability and following ratoon-season growth, which all contribute to stubble quality. In addition, a unique sink-source relationship in the ratoon system, from the stubble to the ratoon tillers, is crucial for the ratoon ability, suggesting nutrient left behind in stubble and related nutrient distribution and transport also play important roles in stubble quality. Ratoon season exhibit higher dry matter accumulation and distribution, specific grain filling pattern and soil enzyme activities and microbial functional diversity in rhizosphere, which privide new sights to the underlying mechanism of ratoon growth. However, there are still lots of challenge of ratoon rice, such as breeding of ideal rice varieties, mechanized harvesting, optimized cultivation management, and molecular mechanism of ratoon ability.
For this Special Issue, we are seeking research and review papers about physiology and molecular ecology of ratoon rice.
Prof. Dr. Wenxiong Lin
Dr. Wenfei Wang
Guest Editors
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Keywords
- ratoon rice
- ratoon ability
- grain yield
- grain quality
- mechanized harvesting
- breeding
- cultivation management
- physiology and molecular ecology
- stubble quality
- ratoon grain filling
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