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中国农学通报 ›› 2017, Vol. 33 ›› Issue (5): 35-39.doi: 10.11924/j.issn.1000-6850.casb16040036

所属专题: 烟草种植与生产

• 林学 园艺 园林 • 上一篇    下一篇

‘豫烟9号’和‘中烟100’苗期生物学特性及氮代谢差异研究

刘巧真,陈廷贵,闫小毛,吴照辉,韩会阁,王典,郭芳阳   

  1. 河南省农业科学院烟草研究所,河南省农业科学院烟草研究所,河南省农业科学院烟草研究所,河南省农业科学院烟草研究所,河南省农业科学院烟草研究所,河南省烟草公司许昌市公司,河南省农业科学院烟草研究所
  • 收稿日期:2016-04-07 修回日期:2016-06-20 接受日期:2016-06-24 出版日期:2017-03-01 发布日期:2017-03-01
  • 通讯作者: 郭芳阳
  • 基金资助:
    河南产区优势烤烟新品种配套技术集成与推广应用(上海烟草集团资助项目);河南省农业科学院科研发展专项基金项目“烤烟幼苗期耐 肥性评价指标筛选研究”(20137909)。

Differences of Biological Characteristics and Nitrogen Metabolism Between‘Yuyan 9’and ‘Zhongyan 100’Flue-cured Tobacco in Seedling Stage

  • Received:2016-04-07 Revised:2016-06-20 Accepted:2016-06-24 Online:2017-03-01 Published:2017-03-01

摘要: 为进一步研究氮高效品种‘豫烟9号’和氮低效品种‘中烟100’品种特性差异,进行了苗期生物学特性及氮代谢差异研究。选用‘豫烟9号’和‘中烟100’基质漂浮培养幼苗进行了叶片、根系生物学调查;选用不同氮素浓度条件下的水培幼苗进行了氮代谢相关指标的测定。结果表明:幼苗期‘豫烟9号’和‘中烟100’烤烟品种生物学特性差异明显,主要表现在‘豫烟9号’总叶面积、干物质积累量、总根长、根表面积和根体积明显高于‘中烟100’。叶片硝酸还原酶活性明显高于叶脉,高氮条件下硝酸还原酶活性高于低氮条件;无论叶片或叶脉,氮营养液浓度高低,‘豫烟9号’硝酸还原酶活性均高于‘中烟100’。高氮条件下‘中烟100’叶片硝态氮含量高于叶脉,其他处理叶脉硝态氮含量均高于叶片。无论氮营养液浓度高低,‘豫烟9号’叶片氮含量和SPAD值均明显高于‘中烟100’。由此看来,‘豫烟9号’的物质合成和氮素同化积累能力均明显高于‘中烟100’。

关键词: 甘肃, 甘肃, 麦积区, 旱涝演变, 果树生产, 影响分析

Abstract: The objective was to further investigate the differences of varietal characteristics between highproficient nitrogen variety‘Yuyan 9’and low-proficient nitrogen variety‘Zhongyan 100’. Studies on the biological characteristics and nitrogen metabolism of‘Yuyan 9’and‘Zhongyan 100’in seedling stage were carried out. The seedlings of‘Yuyan 9’and‘Zhongyan 100’were cultured by matrix floating, and the biology of leaf and root was investigated. The nitrogen metabolism indices of hydroponic seedlings were detected under different nitrogen concentrations. The results showed that, in seedling stage, significant differences of biological characteristics were observed between‘Yuyan 9’and‘Zhongyan 100’. The total leaf area, dry matter accumulation, root length, root surface area and root volume of‘Yuyan 9’were all significantly higher than those of‘Zhongyan 100’. The nitrate reductase activity (NRA) of leaves was significantly higher than that of veins; compared with low nitrogen condition, the NRA of leaves and veins were both higher in high nitrogen condition; regardless of the leaf parts and nitrogen conditions, the NRA of‘Yuyan 9’was always higher than that of‘Zhongyan 100’. In both high and low nitrogen conditions, the nitrogen concentration and SPAD of ‘Yuyan 9’were both higher than those of‘Zhongyan 100’. These results indicated that the material synthesis and nitrogen accumulation abilities of‘Yuyan 9’were significantly higher than those of‘Zhongyan 100’