Variations of Rice Yield and Quality in Response to Different Establishment Methods at Farmers' Field
文献类型： 外文期刊
作者： Wu, Wenge 1 ; Tu, Debao 1 ; Xi, Min 1 ; Xu, Youzun 1 ; Zhou, Yongjin 1 ; Li, Zhong 1 ; Ji, Yalan 1 ; Sun, Xueyuan 1 ; Yang, Yachun 1 ; Li, Feiyue 2 ;
作者机构： 1.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230031, Peoples R China
2.Anhui Sci & Teachnol Univ, Coll Agr, Chuzhou 239000, Peoples R China
关键词： rice yield; grain quality; cultivars; establishment methods
期刊名称：AGRONOMY-BASEL （ 影响因子：3.949； 五年影响因子：4.117 ）
ISSN：
年卷期： 2022 年 12 卷 12 期
页码：
收录情况： SCI
摘要： Mechanized production plays an important role in fulfilling food security demands during the period of labor shortage. Despite its benefits, the mechanical transplanted method (MET) has not been widely adopted due to a lack of awareness. Thus, this study aimed to evaluate the effect of the MET, the manual transplanted method (MAT), and the directed seeded method (DS) on rice yield and quality in farmers' fields. A two-years field experiment (2016 and 2017) and a one-year survey (2020) were conducted to compare rice yield and quality among the MAT, MET, and DS methods. MET exhibited a higher-yielding population, increased biomass production, enhanced yield, and improved grain quality, compared with MAT. Moreover, japonica rice in MET (MET-JR) produced the maximum yield, 0.6 t hm(-2) to 3.1 t hm(-2) higher than in other treatments. However, japonica rice showed a poorer appearance quality than indica rice, as well as large panicle size (grains number per panicle >= 190); hybrid indica rice (HIR) also presented a high yield with poor appearance quality. These results confirmed that the application of MET could be useful in attaining high panicles per m(2), high biomass production, high rice yield, and considerably improved rice quality in farmers' fields under labor shortage circumstances. Furthermore, it is also imperative to consider balancing the yield and quality of japonica rice and large panicle HIR and employing MET at a broader scale in China, as well as other developing countries having rice-based cropping systems.
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