不同氮肥处理对鄂麦006苗期生理形态的影响

doi:10.14088/j.cnki.issn0439-8114.2019.22.016

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (22): 71-74.doi: 10.14088/j.cnki.issn0439-8114.2019.22.016

不同氮肥处理对鄂麦006苗期生理形态的影响

徐晴¹, 许甫超¹, 秦丹丹¹, 袁旭², 刘小强³, 葛双桃¹, 董静¹

1.湖北省农业科学院粮食作物研究所/粮食作物种质创新与遗传改良湖北省重点实验室,武汉 430064;
2.长江大学农学院,湖北荆州 434000;
3.湖北工程学院生命科学技术学院,湖北孝感 432000

收稿日期:2019-08-01 出版日期:2019-11-25 发布日期:2019-12-09
作者简介:徐晴（1983-）,女,河南平顶山人,助理研究员,博士,主要从事麦类遗传基础研究,（电话）18571550899（电子信箱）395045924@qq.com。

Physiological and morphological changes of Emai 006 in response to different nitrogen input

XU Qing¹, XU Fu-chao¹, QIN Dan-dan¹, YUAN Xu², LIU Xiao-qiang³, GE Shuang-tao¹, DONG Jing¹

1.Institute of Food Crop,Hubei Academy of Agricultural Sciences/Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement,Wuhan 430064,China;
2.College of Agronomy,Yangtze University,Jingzhou 434000,Hubei,China;
3.College of Life Science and Technology,Hubei Engineering University,Xiaogan 432000,Hubei,China

Received:2019-08-01 Online:2019-11-25 Published:2019-12-09

摘要/Abstract

摘要： 为探明减施氮肥对鄂麦006苗期植株生理形态的影响,以郑麦9023为对照,大田条件下设置正常氮肥和低氮2种施肥条件,研究幼苗植株地上部和根系鲜重、叶绿素含量、分蘖数以及硝酸还原酶（NR）和谷胺酰胺合成酶（GS）活性的差异。结果表明,鄂麦006植株总鲜重、地上部鲜重积累随氮肥减少而降低;无论正常氮肥还是减施氮肥,其生物积累量均大于郑麦9023;低氮条件下植株根冠比增大。小麦苗期分蘖数和叶绿素含量均受氮素浓度正向调控;减施氮肥对鄂麦006分蘖数的影响小于郑麦9023。鄂麦006幼苗植株硝酸还原酶活性随着氮素提高而升高,谷氨酰胺合成酶活性则与之相反。

关键词: 鄂麦006, 氮素, 苗期

Abstract: To explore the effects of reducing nitrogen on wheat seedling’s morphology and physiology of Emai 006, normal and low nitrogen input were applied in the field conditions, and the plant biomass, tiller number, chlorophyll content as well as the nitrate reductase（NR） and glutamine synthetase（GS） enzyme activity of wheat seedlings were investigated. Zhengmai 9023, which was the control variety in Hubei province. The results indicated that the total plant biomass and aboveground biomass reduced upon the decrease of the nitrogen input regardless of the genotype. However, Emai 006 accumulated more amount of biomass than the control of Zhengmai 9023 in both nitrogen conditions. The shoot/root ratio was higher under the low nitrogen input conditions of both genotypes. A positive regulation between nitrogen input and the tiller formation, plant chlorophyll content was observed. But effects of reducing nitrogen on tiller formation of Emai 006 were lesser. The NR activity was elevated upon the increase of the nitrogen input, whereas the GS activity showed the opposite.

Key words: Emai 006, nitrogen response, seedling stage

中图分类号:

徐晴, 许甫超, 秦丹丹, 袁旭, 刘小强, 葛双桃, 董静. 不同氮肥处理对鄂麦006苗期生理形态的影响[J]. 湖北农业科学, 2019, 58(22): 71-74.

XU Qing, XU Fu-chao, QIN Dan-dan, YUAN Xu, LIU Xiao-qiang, GE Shuang-tao, DONG Jing. Physiological and morphological changes of Emai 006 in response to different nitrogen input[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(22): 71-74.

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不同氮肥处理对鄂麦006苗期生理形态的影响

Physiological and morphological changes of Emai 006 in response to different nitrogen input

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