Characterization of Nitrogen Uptake Pattern in Malaysian Rice MR219 at Different Growth Stages Using 15N Isotope

Hashim, Mohammad; Yusop, Mohd Khanif; Othman, Radziah; Samsuri, A. W.

doi:10.1016/j.rsci.2015.09.005

Cited by 40 publications

(30 citation statements)

References 11 publications

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“…The recovery rate of 15 N-labeled urea in the rice-soil system was 52.2%-55.2% in the present study (Figure 5a). Ndff in rice plants ranged from 18.7% to 40.0% in all plant tissues [28]. In the present study, rice plant uptake of Ndff ranged from 16.4% to 62.7% in all plant tissues (Figure 5b).…”

Section: Ammonia Volatilization Nitrogen Absorption and Distributiosupporting

confidence: 57%

Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils

Huang

Zhang

et al. 2017

Sustainability

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Abstract:The objectives of this study were to evaluate the effects of different fertilizer types and application rates on ammonia volatilization loss and to explore nitrogen distribution and nitrogen use efficiency using the 15 N isotope tracing technique in different alkaline salt-affected conditions in the Songnen Plain, Northeast China. The results showed a decreasing trend in ammonia volatilization loss from ammonium nitrate and ammonium sulfate, but not that from urea, as the electrical conductivity gradient increased, whereas the reverse trend was found as the pH gradient increased. Ammonia volatilization loss increased in moderately salt-affected soil compared with that in slightly salt-affected soil, particularly during the tillering stage, regardless of the N fertilizer rate. The percentage of N absorbed by rice plants increased from urea but decreased from the soil as the amount of nitrogen was increased. Interestingly, the N retention rate in soil decreased and rice grain yield and nitrogen agronomic efficiency increased as the amount of nitrogen increased in both salt-affected soil conditions. The nitrogen application amount of highest N physiological efficiency was 225 kg·N/ha. Considering high rice production and a minimal environmental threat, we should fully consider controlling ammonia volatilization losses by adjusting the fertilizer type and the crop stage when the fertilizer is applied.

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Section: Ammonia Volatilization Nitrogen Absorption and Distributiosupporting

confidence: 57%

Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils

Huang

Zhang

et al. 2017

Sustainability

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“…All isolates were collected from the MR219 rice variety, which is the most popular variety of rice planted on 70% of all rice plantation areas in Malaysia (Hashim et al 2015), and recently it has shown signs of being susceptible to the rice blast disease. Although the results of RAPD analysis showed quite good congruence with the results obtained from ISSR studies, a greater effective ratio of multi-locus Table 1 Coefficient doi: 10.17221/102/2016-CJGPB markers as well as a higher number of private alleles were observed using ISSR markers (Nasehi et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Characterisation of Magnaporthe oryzae isolates from rice in peninsular Malaysia.

Abed-Ashtiani¹,

Kadir²,

Nasehi³

et al. 2016

Czech J. Genet. Plant Breed.

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Abed-Ashtiani F., Kadir J., Nasehi A., Hashemian-Rahaghi S.-R., Vadamalai G., Rambe S.-K. (2016): Characterisation of Magnaporthe oryzae isolates from rice in peninsular Malaysia. Czech J. Genet. Plant Breed., 52: 145-156.The genus Pyricularia (anamorph)/Magnaporthe (teleomorph) includes important destructive pathogens causing blast disease on various species from the family Poaceae. Thirty-five Magnaporthe isolates were collected from diseased rice plants (variety MR219) in different rice-growing regions of Malaysia, including the five states of Selangor, Penang, Kedah, Kelantan, and Perak between 2010 and 2014. DNA sequence analyses of the internal transcribed spacer (ITS), actin, β-tubulin and calmodulin gene regions, random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) analyses were conducted to analyse 35 Magnaporthe isolates. Phylogenetic analysis of the combined dataset confirmed the identification of all isolates as M. oryzae with a high distance from other Magnaporthe (Pyricularia) species. RAPD and ISSR analyses indicated the existence of a relatively low similarity index value among M. oryzae isolates through identification of four main clades. The clustering of RAPD and ISSR analyses demonstrated that there was a correlation between the isolates and their geographical origins.

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“…For UF-MWCNTs fertilizer, the obtained responses were varied between 71 and 96%, 978 and 1363 mg/pot, and 152 and 237 g/pot for NUE, NU, and TDW, respectively. Several researchers have conducted studies on NUE attainments for rice plant under N fertilizer treatments [56][57][58]. Recently, Hashim et al [56] reported that the NUE of MR219, Malaysian local rice variety, under standard UF treatment reached up to 50%.…”

Section: Raman Spectroscopy Analysismentioning

confidence: 99%

“…Several researchers have conducted studies on NUE attainments for rice plant under N fertilizer treatments [56][57][58]. Recently, Hashim et al [56] reported that the NUE of MR219, Malaysian local rice variety, under standard UF treatment reached up to 50%. The remaining 50% of N from the applied fertilizer either remained in the soil or was lost to the environment.…”

Section: Raman Spectroscopy Analysismentioning

confidence: 99%

Application of Response Surface Methodology for Optimization of Urea Grafted Multiwalled Carbon Nanotubes in Enhancing Nitrogen Use Efficiency and Nitrogen Uptake by Paddy Plants

Yatim

Shaaban

Dimin

et al. 2016

Journal of Nanotechnology

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Efficient use of urea fertilizer (UF) as important nitrogen (N) source in the world’s rice production has been a concern. Carbon-based materials developed to improve UF performance still represent a great challenge to be formulated for plant nutrition. Advanced N nanocarrier is developed based on functionalized multiwall carbon nanotubes (f-MWCNTs) grafted with UF to produce urea-multiwall carbon nanotubes (UF-MWCNTs) for enhancing the nitrogen uptake (NU) and use efficiency (NUE). The grafted N can be absorbed and utilized by rice efficiently to overcome the N loss from soil-plant systems. The individual and interaction effect between the specified factors of f-MWCNTs amount (0.10–0.60 wt%) and functionalization reflux time (12–24 hrs) with the corresponding responses (NUE, NU) were structured via the Response Surface Methodology (RSM) based on five-level CCD. The UF-MWCNTs with optimized 0.5 wt% f-MWCNTs treated at 21 hrs reflux time achieve tremendous NUE up to 96% and NU at 1180 mg/pot. Significant model terms (pvalue < 0.05) for NUE and NU responses were confirmed by the ANOVA. Homogeneous dispersion of UF-MWCNTs was observed via FESEM and TEM. The chemical changes were monitored by FT-IR and Raman spectroscopy. Hence, this UF-MWCNTs’ approach provides a promising strategy in enhancing plant nutrition for rice.

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Characterization of Nitrogen Uptake Pattern in Malaysian Rice MR219 at Different Growth Stages Using 15N Isotope

Cited by 40 publications

References 11 publications

Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils

Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils

Characterisation of Magnaporthe oryzae isolates from rice in peninsular Malaysia.

Application of Response Surface Methodology for Optimization of Urea Grafted Multiwalled Carbon Nanotubes in Enhancing Nitrogen Use Efficiency and Nitrogen Uptake by Paddy Plants

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