Remote sensing of physiological traits associated with rice yield potential and its application to screening of genotypes.

水稻产量潜力相关生理性状遥感及其在基因型筛选中的应用

基本信息

  • 批准号:
    13556006
  • 负责人:
  • 金额:
    $ 8.58万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2003
  • 项目状态:
    已结题

项目摘要

The objectives were (i) to identify yield determination processes of rice and the associated traits, (ii) to develop method to evaluate the traits by remote-sensing under field conditions, and (iii) to clarify the applicability of the remote-sensing method for screening of high-yielding genotypes. On the basis of field experiments on widely different 10 genotypes conducted in 3 years, the following results. were obtained :(1). It was confirmed from the field experiments conducted under widely different environments that genotypic difference in yielding ability is related to that in crop growth rate (CGR) during 2-week period preceding heading. The mechanism through which the CGR during 2-week period determine rice yield potential was hypothesized based on the review of previous studies.(2). The genotypic difference in the CGR during 2-week period preceding heading could well be explained by the difference in the canopy diffusive conductance.(3). We developed a method to estimate canopy diffusive conductance by incorporation of simultaneously remote-sensed sunlit and suddenly shared canopy temperatures and micro-climatic data into energy budget equations of rice canopy. The canopy conductance thus estimated showed close relationships with stomatal conductance, and the CGR over different genotypes.(4). The results above suggest that the remote-sensing system here developed can be useful tool for rapid evaluation of yield potential of rice genotypes under field conditions.
目的是(i)确定水稻产量及其相关性状的决定过程,(ii)开发在田间条件下通过遥感评估性状的方法,(iii)阐明遥感方法在筛选高产基因型中的适用性。根据3年来对10个不同基因型的田间试验结果,获得了:(1).在不同环境条件下进行的田间试验证实,产量的基因型差异与抽穗前2周的作物生长速率(CGR)有关。在总结前人研究的基础上,提出了两周生长势决定水稻产量潜力的机制。(二)、抽穗前2周内群体生长速率的基因型差异可用冠层扩散导度的差异来解释。(三)、提出了一种将同时遥感的日照温度和突然共享的冠层温度和小气候数据结合到水稻冠层能量收支方程中来估算冠层扩散导度的方法。由此估算的冠层导度与气孔导度和不同基因型的CGR有密切的关系。(四)、以上结果表明,该遥感系统可用于田间条件下快速评价水稻品种的产量潜力。

项目成果

期刊论文数量(52)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Lubis, I.: "Contribution of sink and source sizes to yield variation among rice cultivars."Plant Prod.Sci.. 6・2. 119-125 (2003)
Lubis, I.:“库和源大小对水稻品种产量变化的贡献”。Plant Prod.Sci.. 6・2 (2003)。
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    0
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Matsui, T.: "Comparison between anthors of two rice (Oryza sativa L.) cultivars with tolerance to high temperature at flowering or susceptibility"Plant Production Science. 4. 36-40 (2001)
Matsui, T.:“两个水稻品种(Oryza sativa L.)开花时耐高温或易感性的比较”《植物生产科学》。
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    0
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Matsui, T.: "The difference in sterility due to high temperature during the flowering period among Japonica - rice varieties."Plant Production Science. 4. 90-93 (2001)
Matsui, T.:“粳稻品种之间开花期高温导致的不育差异。”植物生产科学。
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    0
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Kuwasaki, K.: "Identification and evaluation of major traits determining yield potential of rice under field conditions 6. Genotypic difference in the remotely-sensed canopy conductance and its relationship with crop growth rate."Jpn.J.Crop Sci.. 71, extr
Kuwasaki, K.:“田间条件下决定水稻产量潜力的主要性状的鉴定和评估 6。遥感冠层导度的基因型差异及其与作物生长率的关系。”Jpn.J.Crop Sci.. 71,
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    0
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Suzuki, T.: "Competitiveness of four rice cultivars against barnyardgrass, Echinochloa oryzacola, with reference to root and shoot competition"Plant Production Science. 5・1. 77-82 (2002)
Suzuki, T.:“四种水稻品种对稗草、稗草的竞争力,参考根和芽竞争”《植物生产科学》5·1(2002)。
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HORIE Takeshi其他文献

HORIE Takeshi的其他文献

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{{ truncateString('HORIE Takeshi', 18)}}的其他基金

Evaluation and prediction of the effects of climate variation and global warming on rice production in Monsoon Asia.
气候变化和全球变暖对季风亚洲水稻生产影响的评估和预测。
  • 批准号:
    13575018
  • 财政年份:
    2001
  • 资助金额:
    $ 8.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of Wide-Scale Monitor and Prediction Systems for Rice Growth and Yield
水稻生长和产量的大规模监测和预测系统的开发
  • 批准号:
    06556003
  • 财政年份:
    1994
  • 资助金额:
    $ 8.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Development of Dynamic Model for Predicting Growth and Yield of Rice
预测水稻生长和产量的动态模型的建立
  • 批准号:
    03404007
  • 财政年份:
    1991
  • 资助金额:
    $ 8.58万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
Development of Realtime Prediction System of Developmental Stage of Rice
水稻发育阶段实时预测系统的研制
  • 批准号:
    62860002
  • 财政年份:
    1987
  • 资助金额:
    $ 8.58万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research

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