莫钊文, 汪益磊, 肖枫, 汤永坚, 潘圣刚, 段美洋, 唐湘如. 花后持续遮光15 d对香稻产量、品质和香气的影响[J]. 华南农业大学学报, 2015, 36(3): 45-48. DOI: 10.7671/j.issn.1001-411X.2015.03.008
    引用本文: 莫钊文, 汪益磊, 肖枫, 汤永坚, 潘圣刚, 段美洋, 唐湘如. 花后持续遮光15 d对香稻产量、品质和香气的影响[J]. 华南农业大学学报, 2015, 36(3): 45-48. DOI: 10.7671/j.issn.1001-411X.2015.03.008
    MO Zhaowen, WANG Yilei, XIAO Feng, TANG Yongjian, PAN Shenggang, DUAN Meiyang, TANG Xiangru. Effects of 15-day continuously shading treatment after flowering on grain yield, quality and aroma of aromatic rice[J]. Journal of South China Agricultural University, 2015, 36(3): 45-48. DOI: 10.7671/j.issn.1001-411X.2015.03.008
    Citation: MO Zhaowen, WANG Yilei, XIAO Feng, TANG Yongjian, PAN Shenggang, DUAN Meiyang, TANG Xiangru. Effects of 15-day continuously shading treatment after flowering on grain yield, quality and aroma of aromatic rice[J]. Journal of South China Agricultural University, 2015, 36(3): 45-48. DOI: 10.7671/j.issn.1001-411X.2015.03.008

    花后持续遮光15 d对香稻产量、品质和香气的影响

    Effects of 15-day continuously shading treatment after flowering on grain yield, quality and aroma of aromatic rice

    • 摘要:
      目的 探明花后持续遮光15 d对香稻产量、品质和香气特征物质2-乙酰-1-吡咯啉(2-AP)的影响.
      方法 以常规香稻品种玉香油占和农香18为材料,进行大田对比试验,设置花后持续遮光15 d处理和正常光照处理, 测定了香稻产量、品质和2-乙酰-1-吡咯啉(2-AP)含量等指标.
      结果和结论 与正常光照处理相比, 花后持续遮光15 d显著提高了籽粒2-AP含量和蛋白质含量,但千粒质量、结实率和产量以及整精米率均显著降低.花后持续遮光15 d可以提高香稻香气但会降低产量,对稻米其他品质性状的影响因品种而异.

       

      Abstract:
      Objective To investigate the effects of 15-day continuously shading treatment after flowering on yield, quality and major aromatic compound 2-acetyl-1-pyrroline (2-AP).
      Method Two conventional aromatic rice cultivars of Yuxiangyouzhan and Nongxiang18 were treated by 15-day continuously shading after flowering and natural light in the field. The yield, quality, 2-acetyl-1-pyrroline content and other indexes of aromatic rice were measured.
      Result and conclusion The results showed that compared with natural light, the 15-day continuously shading treatment after flowering significantly increased the contents of 2-acetyl-1-pyrroline and protein in grains, and significantly decreased 1000-grain mass, seed setting rate and yield as well as head rice rate. Therefore, low-light stress plays a positive role in the aroma enhancement of aromatic rice but leads to a yield reduction. The effects of shading on other grain quality traits are different due to different varieties.

       

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