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Agronomic and Physicochemical Properties Facilitating the Synchronization of Grain Yield and the Overall Palatability of Japonica Rice in East China

Author

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  • Huanhe Wei

    (Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou 225009, China)

  • Jialin Ge

    (Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou 225009, China)

  • Xubin Zhang

    (Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou 225009, China)

  • Wang Zhu

    (Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou 225009, China
    Institutes of Agricultural Science and Technology Development, Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China)

  • Yinglong Chen

    (Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou 225009, China)

  • Tianyao Meng

    (Institutes of Agricultural Science and Technology Development, Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China)

  • Qigen Dai

    (Jiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou 225009, China
    Institutes of Agricultural Science and Technology Development, Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China)

Abstract

Understanding the agronomic and physicochemical characteristics related to grain yield and grain quality is an ongoing hotspot. In 2018 and 2019, high-yielding rice with good palatability (HYGP), high-yielding rice with poor palatability (HYPP), and low-yielding rice with good palatability (LYGP) were grown in paddy fields to explore the main traits underlying the better grain yield and overall palatability of HYGP. HYGP and HYPP demonstrated a 18.1–20.7% higher grain yield ( p < 0.05) than LYGP; HYGP and LYGP gave an overall palatability from 75.2 to 77.0, higher ( p < 0.05) than HYPP. The higher grain yield of HYGP compared to that of LYGP resulted from a larger sink size because of the spikelets per panicle and the higher total shoot biomass weight ( p < 0.05). HYGP exhibited more ( p < 0.05) panicles per m 2 but lower spikelets per panicle and 1000-grain weight than HYPP and maintained a similar grain yield to HYPP. Compared with HYPP and LYGP, HYGP exhibited more ( p < 0.05) biomass accumulation from heading to maturity, supported by the higher leaf area index, post-heading leaf photosynthetic rate, and SPAD values. HYGP had higher ( p < 0.05) adenosine diphosphate glucose pyrophosphorylase and starch branching enzyme activities at the middle and late grain-filling stages than HYPP and LYGP. HYGP and LYGP had a lower ( p < 0.05) chalky area, chalky degree, amylose content, setback, grain protein content, and prolamin content than HYPP, while it had a higher ( p < 0.05) gel consistency, breakdown, and ratio of glutelin content to prolamin content. Our results suggested that optimized yield components, more biomass accumulation through improved leaf photosynthetic capacities, a lower amylose content with coordinated enzyme activities involved in starch synthesis, and a lower grain protein content with a better composition were the main traits facilitating the better grain yield and overall palatability of rice in east China.

Suggested Citation

  • Huanhe Wei & Jialin Ge & Xubin Zhang & Wang Zhu & Yinglong Chen & Tianyao Meng & Qigen Dai, 2022. "Agronomic and Physicochemical Properties Facilitating the Synchronization of Grain Yield and the Overall Palatability of Japonica Rice in East China," Agriculture, MDPI, vol. 12(7), pages 1-17, July.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:7:p:969-:d:856713
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    References listed on IDEAS

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    1. Yihao Yang & Min Guo & Shengyuan Sun & Yelu Zou & Shuangyi Yin & Yannan Liu & Shuzhu Tang & Minghong Gu & Zefeng Yang & Changjie Yan, 2019. "Natural variation of OsGluA2 is involved in grain protein content regulation in rice," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
    2. Liu, Xiao & Li, Mo & Guo, Ping & Zhang, Zhongxue, 2019. "Optimization of water and fertilizer coupling system based on rice grain quality," Agricultural Water Management, Elsevier, vol. 221(C), pages 34-46.
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    Cited by:

    1. Yinglong Chen & Yang Liu & Shiqi Dong & Juge Liu & Yang Wang & Shahid Hussain & Huanhe Wei & Zhongyang Huo & Ke Xu & Qigen Dai, 2022. "Response of Rice Yield and Grain Quality to Combined Nitrogen Application Rate and Planting Density in Saline Area," Agriculture, MDPI, vol. 12(11), pages 1-13, October.

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