中国水稻科学 ›› 2020, Vol. 34 ›› Issue (5): 425-434.DOI: 10.16819/j.1001-7216.2020.0106

• 研究报告 • 上一篇    下一篇

豫南地区头季和再生季水稻产量与品质差异分析

汪浩1, 刘祥臣2, 张强1,2, 余贵龙2, 张文地1, 黄健1, 朱安1, 刘立军1,*()   

  1. 1扬州大学 江苏省作物遗传生理重点实验室/江苏省作物栽培生理重点实验室/江苏省粮食作物现代产业技术协同创新中心,江苏 扬州 225009
    2信阳市农业科学院,河南 信阳 464000
  • 收稿日期:2020-01-18 修回日期:2020-05-22 出版日期:2020-09-10 发布日期:2020-09-10
  • 通讯作者: 刘立军
  • 基金资助:
    国家重点研发计划资助项目(2016YFD0300502, 2017YFD0301206);国家自然科学基金资助项目(31871557, 31671614);江苏省农业科技自主创新资金资助项目[cx(18)3007];河南省现代农业产业技术体系项目(S2018-04-04);江苏高校优势学科建设工程资助项目

Differences in Grain Yield and Quality in Main and Ratoon Rice in Southern Henan Province

Hao WANG1, Xiangchen LIU2, Qiang ZHANG1,2, Guilong YU2, Wendi ZHANG1, Jian HUANG1, An ZHU1, Lijun LIU1,*()   

  1. 1Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
    2Xinyang Academy of Agricultural Sciences, Xinyang 464000, China
  • Received:2020-01-18 Revised:2020-05-22 Online:2020-09-10 Published:2020-09-10
  • Contact: Lijun LIU

摘要:

【目的】 “中稻+再生稻”组合是豫南稻区新的水稻种植模式,但是头季与再生季水稻产量和稻米品质变化尚不清楚。明确其产量和米质变化规律可为豫南地区高产优质再生稻品种选择提供理论与实践依据。【方法】以两优6326等12个适于单季种植的杂交籼稻为材料,在当地高产栽培条件下,依据头季和再生季两季产量将其划分为两季产量均高(双高)、头季稻产量高再生季产量低(头高再低)、头季稻产量低再生季产量高(头低再高)和两季产量均低(双低)等四种类型,并分析了米质的差异。【结果】 1)与头季稻相比,12个组合的再生季稻米加工品质和外观品质显著改善,蛋白质含量降低,稻米食味品质不同程度变优。2)两季不同产量类型之间比较,除双低类型(仅深两优11号一个品种)外,双高类型和头高再低类型加工品质较优,而头高再低类型的外观品质和蒸煮食味品质较优。蛋白质含量在各产量类型头季稻之间无显著差异,而再生季双高类型较头高再低类型高10.7 %,比头低再高类型低1.75 %。3)齐穗后日平均温度对稻米品质的影响远大于日照时数,再生季齐穗后日平均温度较低是其稻米品质优于头季稻的重要原因。【结论】综合产量及品质,两优6326、天两优616、广两优476和丰两优香1号是适于豫南地区的高产优质再生水稻品种。

关键词: 头季稻, 再生稻, 产量, 稻米品质

Abstract:

【Objective】 The combination of mid-season rice+ratoon rice is a new pattern of rice planting in southern Henan Province. However, the changes in grain yield and quality between the main and ratoon seasons remain unclear. Clarifying the changing law of grain yield and rice quality can lay a theoretical and practical basis for the screening of ratoon rice varieties with higher grain yield and better rice quality in southern Henan Province. 【Method】 In this study, 12 hybrid indica rice combinations suitable for single-cropping rice were used as materials under local high-yield cultivation conditions. The tested combinations were divided into four types according to their yields in main and ratoon seasons: BH, both high grain yields in main and ratoon season; HL, high grain yield in main season and low grain yield in ratoon season; LH, low grain yield in main season and high yield in ratoon season; BL, both low grain yields in main and ratoon seasons. The difference in rice quality was also analyzed. 【Result】 1) The processing quality and appearance quality in ratoon season were significantly improved, however, the protein contents decreased, and the eating quality of rice was improved to different extents as compared with those in main season; 2) Except for BL type (only one combination, Shenliangyou 11), the processing quality of BH and HL was better, and HL has better appearance quality and cooking and eating quality. There was no significant difference in protein contents among different yield types in main season, while in ratoon season, the protein contents in BH were 10.7 % higher than those in HL, and 1.75% lower than those in LH. 3) The effect of daily average temperature after full heading on grain quality was far greater than the sunshine hours, and the relatively low average daily temperature after full heading in ratoon season was the main reason for its better grain quality. 【Conclusion】 Based on higher grain yield and better rice quality, Liangyou 6326, Tianliangyou 616, Guangliangyou 476 and Fengliangyouxiang 1 were suitable varieties for ratoon cultivation in southern Henan Province.

Key words: main crop rice, ratoon rice, yield, rice quality

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