Responses of nitrogen accumulation and translocation in five cytoplasmic hybrid rice cultivars

Noor Muhammad, Yating Zheng, Farhan Nabi, Guotao Yang, Sumbal Sajid, Abdul Hakeem, Xuechun Wang, Youlin Peng, Zartasha Khan and Yungao Hu
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Noor Muhammad: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Yating Zheng: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Farhan Nabi: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Guotao Yang: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Sumbal Sajid: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Abdul Hakeem: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Xuechun Wang: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Youlin Peng: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China
Zartasha Khan: Sardar Bahadur Khan Women University, Quetta, Balochistan, Pakistan
Yungao Hu: College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, P.R. China

Plant, Soil and Environment, 2022, vol. 68, issue 2, 73-81

Abstract: To study the difference among cytoplasm at the different nitrogen conditions, a research experiment was conducted using five different cytoplasmic male sterile (CMS) hybrid rice with nitrogen levels at N0, N1, N2, and N3; the nitrogen application rates were 0, 90, 180, and 270 kg/ha, from 2018 to 2019. Results showed that among tested cultivars of CMS hybrid rice, JW (J803A × Chenghui727) showed the highest yield in both years for the low nitrogen and high nitrogen treatments. The dry matter accumulation and translation of JW type in nutritive organs were higher than that of others during the low nitrogen level (N1). We concluded that the nutrient translocation within plants organs and dry biomass accumulation were highly dependent on CMS type and nitrogen application. This research indicates that selecting a rice cultivar with greater efficiency of nitrogen is favourable for raising the number of grains per panicle, grain yield, and nitrogen use efficiency. JW cytoplasm displayed great efficiency in low nitrogen, which is a potential cytoplasmic resource.

Keywords: cytoplasmic male infertility; chlorophyll fluorescence; nitrogen utilisation efficiency; grain weight; vegetative organs (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:68:y:2022:i:2:id:354-2021-pse

DOI: 10.17221/354/2021-PSE

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