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

doi:10.14088/j.cnki.issn0439-8114.2019.22.016

HUBEI AGRICULTURAL SCIENCES ›› 2019, Vol. 58 ›› Issue (22): 71-74.doi: 10.14088/j.cnki.issn0439-8114.2019.22.016

• Resource & Environment • Previous Articles Next Articles

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

Abstract

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

CLC Number:

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

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