不同浓度硒肥对籼稻硒含量和产量的影响
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陕西省科技研究发展计划项目(2004K02-G)资助


Selenium content and yield of indica rice under different selenium concentration
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    摘要:

    发展富硒水稻经济效益显著。为了进一步理解籼稻组合富硒能力和产量变化规律,本研究以安康市农科所选育的优势较好的籼稻后代组合(MR、ME、MI、ML)为材料,在苗期、孕穗期和齐穗期连续喷施不同浓度的硒肥。结果表明:随着硒肥浓度增加,4个籼稻材料硒含量均出现快速增长,但后期增速减缓,富硒能力依次为:ML>MR>ME>MI;产量随着硒肥浓度增加而增加,但是浓度过高,产量则下降,在最适硒肥浓度下,籼稻产量大小依次为:MR>ML>MI>ME。因此,籼稻后代材料MR和ML富硒能力较好,可以作为后续育种工作的重点材料。

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    Development of selenium-enriched indica rice has significant economic benefit. To study the selenium ability and yield variation of different indica rices, at seedling, booting and full heading stage, better offspring (MR, ME, MI, ML) cultivated by Ankang Institute of Agricaltural Sciences were sprayed with selenium fertilizer mixed in different concentration. The results showed that the selenium of four indica rices had rapid growth with the increase of selenium concentration, but then there was a mitigation trend. Under selenium treatment, the selenium ability was as follows: ML>MR>ME>MI. Yield increased continuously with the augment in selenium concentration. However, the yield declined along with too high selenium concentration. Under the optimal selenium concentration, the yield of indica rices was as follow: MR>ML>MI>ME. Therefore, the selenium ability of MR and ML, which could be the focus for the subsequent breeding, were better materials than MI and ME.

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郑甲成,刘 婷.不同浓度硒肥对籼稻硒含量和产量的影响[J].土壤,2014,46(1):88-93. ZHENG Jia-cheng, LIU Ting. Selenium content and yield of indica rice under different selenium concentration[J]. Soils,2014,46(1):88-93

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  • 在线发布日期: 2014-03-26
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