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作物学报 ›› 2016, Vol. 42 ›› Issue (02): 265-277.doi: 10.3724/SP.J.1006.2016.00265

• 耕作栽培·生理生化 • 上一篇    下一篇

甬优籼粳杂交稻花后干物质积累模型与特征分析

韦还和1,孟天瑶1,李超1,张洪程1,*,史天宇1,马荣荣2,王晓燕3,杨筠文4,戴其根1,霍中洋1,许轲1,魏海燕1,郭保卫1   

  1. 1扬州大学农业部长江流域稻作技术创新中心/江苏省作物遗传生理重点实验室, 江苏扬州 225009;2 浙江省宁波市农业科学院作物研究所,浙江宁波 315101;3浙江省宁波市种子公司,浙江宁波315101;4浙江省宁波市鄞州区农业技术服务站,浙江宁波 315100
  • 收稿日期:2015-06-09 修回日期:2015-09-06 出版日期:2016-02-12 网络出版日期:2015-10-08
  • 通讯作者: 张洪程,E-mail: hczhang@yzu.edu.cn
  • 基金资助:

    本研究由农业部超级稻专项(02318802013231), 国家公益性行业(农业)科研专项(201303102), 宁波市重大科技项目(2013C11001)和江苏省重点研发项目(BE2015340)资助。

Dynamic Model and Its Characteristics Analysis for Dry Matter Production after Heading of Indica/JaponicaHybrid Rice of Yongyou Series

WEI Huan-He1,MENG Tian-Yao1,LI Chao1,ZHANG Hong-Cheng1,*,SHI Tian-Yu1,MA Rong-Rong2,WANG Xiao-Yan3,YANG Jun-Wen4,DAI Qi-Gen1,HUO Zhong-Yang1,XU Ke1,WEI Hai-Yan1,GUO Bao-Wei1   

  1. 1 Innovation Center of Rice Cultivation Technology in Yangtze River Valley, Ministry of Agriculture /Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China; 2 Crop Research Institute, Ningbo Academy of Agricultural Sciences of Zhejiang Province, Ningbo 315101, China; 3 Ningbo Seed Company of Zhejiang Province, Ningbo 315101, China; 4 Agricultural Technology Extension and Service, Yinzhou District, Ningbo city, Zhejiang Province, 315100, China
  • Received:2015-06-09 Revised:2015-09-06 Published:2016-02-12 Published online:2015-10-08
  • Contact: 张洪程,E-mail: hczhang@yzu.edu.cn
  • Supported by:

    This research was supported by the Special Program of Super Rice of the Ministry of Agricultural(02318802013231), China Special Fund for Agro-scientific Research in the Public Interest (201303102), the Great Technology Project of Ningbo City (2013C11001), and the Key Projects of Jiangsu Province (BE2015340).

摘要:

以甬优籼粳杂交稻甬优1538和甬优7176为试材,常规粳稻宁粳3号和武运粳24,杂交籼稻扬两优6号和两优培九为对照,研究甬优籼粳杂交稻花后干物质积累特征及比较不同类型品种花后干物质积累特征差异。结果表明: (1)两年中甬优籼粳杂交稻的平均产量为11.5 t hm-2 (11.3~11.7 t hm-2),较常规粳稻和杂交籼稻分别高7.8%和10.4% (两年平均值)。甬优籼粳杂交稻抽穗至成熟期的干物质积累量为8.9 t hm-2,较常规粳稻和杂交籼稻分别高19.1%和26.9%(两年平均值)。(2)不同类型品种花后干物质积累量与花后天数(抽穗当天为0 d)均可用Richards方程拟合(R2均大于0.990);各品种花后干物重积累速率均呈先平缓增加后下降的趋势,花后最大干物重积累速率和平均干物重积累速率呈杂交籼稻>常规粳稻>籼粳杂交稻,籼粳杂交稻达最大干物重积累速率的时间大致在花后42~44 d,常规粳稻和杂交籼稻则在花后26~28 d;籼粳杂交稻在花后渐增期天数和干物质积累量显著高于常规粳稻和杂交籼稻,渐增期干物重积累速率以杂交籼稻最高。常规粳稻在花后快增期和花后缓增期天数和干物质积累量均显著高于籼粳杂交稻和杂交籼稻,快增期和缓增期干物重积累速率则以杂交籼稻最高。本研究表明甬优籼粳杂交稻花后较强的干物质积累优势主要体现在花后渐增期,而花后渐增期较强的干物质积累能力主要在于其较长的渐增期持续天数。

关键词: 甬优籼粳杂交稻, 不同类型品种, 花后干物质生产

Abstract:

This study was conducted using indica-japonicahybrid rice Yongyou 1538 and Yongyou 7176 as the material, conventional japonica rice Ningjing 3 and Wuyunjing 24, and hybrid indica rice Yangliangyou 6 and Liangyoupeijiu as the check to study the characteristics of dry matter production after heading inindica/japonica hybrid rice of Yongyou series and compare the differences in characteristics of dry matter production after heading among different types of rice variety. Results indicated that, grain yield of indica/japonica hybrid rice of Yongyou series was 11.5 t ha-1, on an average, which was 7.8% and 10.4% higher than that of conventional japonica rice and hybrid indica rice, respectively. Dry matter accumulation of indica/japonica hybrid rice was 8.9 t ha-1, which was19.1% and 26.9% higher than that of conventional japonica rice and hybrid indica rice, respectively.Richards' equation was fit to simulate the relationship between dry matter weight and days after heading for three types of rice variety (R2≥0.990). Rate of dry matter accumulation of three types of rice variety decreased after an even increase.Maximum rate of biomass accumulation and mean rate of biomass accumulation after heading of hybrid indica rice were the highest, followed by those of conventional japonica rice, and indica/japonica hybrid rice. Days to maximum rate of dry matter accumulation after heading of indica/japonica hybrid rice was at 42–44 d after anthesis, while those of conventional japonica rice and hybrid indica rice were both at 26–28 d after anthesis. Duration of gradual increase stage and dry matter accumulation in this stage were higher in indica/japonica hybrid rice than inthe check, while mean rate of dry matter accumulation during gradual increase stage was higher inhybrid indica rice than inindica/japonica hybrid rice. The duration and dry matter accumulation during fast increase stage and slow increase stage of conventional japonica rice were the highest among three types of rice variety, while mean rate of dry matter accumulation during fast increase stage and slow increase stage of hybrid indica rice was the highest. Our results implied that greater dry matter accumulation mainly occurred in the gradual increase stage for indica/japonica hybrid rice, which was mainly attributed to the longer duration of this stage.

Key words: Indica/japonica hybrid rice of Yongyou series, Different type rice cultivars, Dry matter production after heading

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