Targeting nitrogen use efficiency for sustained production of cereal crops

Ranjan, Rumesh; Yadav, R. K.

doi:10.1080/01904167.2019.1589497

Cited by 46 publications

(26 citation statements)

References 190 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cereal crops are typically grasses grown for their edible grains. Globally, cereal grains are produced in higher quantities than any other type of crop and deliver more food energy to human beings and livestock than other crops 1 , 2 (Fig. 1 ).…”

Section: Introductionmentioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

187

View full text Add to dashboard Cite

Growth and development of cereal crops are linked to weather, day length and growing degree-days (GDDs) which make them responsive to the specific environments in specific seasons. Global temperature is rising due to human activities such as burning of fossil fuels and clearance of woodlands for building construction. The rise in temperature disrupts crop growth and development. Disturbance mainly causes a shift in phenological development of crops and affects their economic yield. Scientists and farmers adapt to these phenological shifts, in part, by changing sowing time and cultivar shifts which may increase or decrease crop growth duration. Nonetheless, climate warming is a global phenomenon and cannot be avoided. In this scenario, food security can be ensured by improving cereal production through agronomic management, breeding of climate-adapted genotypes and increasing genetic biodiversity. In this review, climate warming, its impact and consequences are discussed with reference to their influences on phenological shifts. Furthermore, how different cereal crops adapt to climate warming by regulating their phenological development is elaborated. Based on the above mentioned discussion, different management strategies to cope with climate warming are suggested.

show abstract

Section: Introductionmentioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

187

View full text Add to dashboard Cite

show abstract

“…There has been an increasing trend in N fertilizer application globally, from 30 M tons in 1970 to about 100 M tons in 2010 and is further likely to reach up to 150 M tons/year by 2050 [7]. Although, processes like volatilization, runoff, denitrification, and leaching results in loss of a large proportion of the applied N (50-70%) from the plant-soil framework [8], still the adverse effects of fertilizer use can be seen including damage to the environment, a large carbon footprint, and depletion of non-renewable resources [9]. Currently, two key concerns are: (i) the declining rate of growth for crop yields, including wheat, and (ii) the overuse of fertilizer [10].…”

Section: Introductionmentioning

confidence: 99%

Epistatic QTLsPlay a Major Role in Nitrogen Use Efficiency and Its Component Traits in Indian Spring Wheat

et al. 2021

Self Cite

View full text Add to dashboard Cite

Nitrogen use efficiency (NUE) in wheat may significantly reduce the excessive use of N fertilizers. However, being a quantitative trait, understanding its genetic basis is required for efficient wheat breeding. The present study was carried out to dissect the complex trait through the mapping of quantitative trait locus (QTLs) related to NUE component traits in Indian wheat. A linkage map was constructed using F2 population derived from two parents contrasting for nitrogen-responsive traits using simple sequence repeat (SSR) markers. Phenotyping for root dry weight, N uptake and utilization were carried out under a high nitrogen environment. Twenty-seven main effect QTLs for eight traits and 26 interaction QTLs for three traits were detected. The main effect QTLs explained a significant amount of phenotypic variance up to the extent of 11.18%. The QTLs were also found to have significant epistatic interactions governed by both additive and non-additive gene action. In particular, chromosome 2A harbours QTLs for many traits viz. SDW, RDW, TDW, R:S, %N, NUtE, and NUpE, including epistasis and interaction QTLs that were flanked by markers Xwmc728-Xwmc473 and Xwmc779-Xgwm249. Taken together, the genomic regions on 2A, 4A, and 7A were found to contain QTLs for a majority of the studied NUE traits that can be potentially exploited in future wheat breeding programmes.

show abstract

“…Nitrification is a key biological transformation process in which ammonium is oxidized to nitrate (Lee et al, 2009; Ranjan & Yadav, 2019; Kumar, Medhi, et al, 2020). In this process, under the aerobic condition, the concentration of ammonium is oxidized to form nitrite (NO 2 − ), which is followed by the oxidation of nitrite to nitrate (NO 3 − ) in the wetland treatment systems (Astrid A.…”

Section: Classification Of Cwsmentioning

confidence: 99%

“…The pollutant form of nitrogen (inorganic) is converted into the organic form which is utilized to build the plant tissues and cells. Plants can utilize ammonium, nitrate, and amino acid form of nitrogen (Ranjan & Yadav, 2019) for their growth and development. Algal and microorganism populations present in CWs also utilize a sizeable amount of nitrogen.…”

Section: Plant Uptake and Assimilationmentioning

confidence: 99%

Mechanistic understanding of the pollutant removal and transformation processes in the constructed wetland system

Malyan

Yadav

Sonkar

et al. 2021

Water Environment Research

View full text Add to dashboard Cite

Constructed wetland systems (CWs) are biologically and physically engineered systems to mimic the natural wetlands which can potentially treat the wastewater from the various point and nonpoint sources of pollution. The present study aims to review the various mechanisms involved in the different types of CWs for wastewater treatment and to elucidate their role in the effective functioning of the CWs. Several physical, chemical, and biological processes substantially influence the pollutant removal efficiency of CWs. Plants species Phragmites australis, Typha latifolia, and Typha angustifolia are most widely used in CWs. The rate of nitrogen (N) removal is significantly affected by emergent vegetation cover and type of CWs. Hybrid CWs (HCWS) removal efficiency for nutrients, metals, pesticides, and other pollutants is higher than a single constructed wetland. The contaminant removal efficiency of the vertical subsurface flow constructed wetlands (VSSFCW) commonly used for the treatment of domestic and municipal wastewater ranges between 31% and 99%. Biochar/zeolite addition as substrate material further enhances the wastewater treatment of CWs. Innovative components (substrate materials, plant species) and factors (design parameters, climatic conditions) sustaining the long‐term sink of the pollutants, such as nutrients and heavy metals in the CWs should be further investigated in the future. Practitioner points Constructed wetland systems (CWs) are efficient natural treatment system for on‐site contaminants removal from wastewater. Denitrification, nitrification, microbial and plant uptake, sedimentation and adsorption are crucial pollutant removal mechanisms. Phragmites australis, Typha latifolia, and Typha angustifolia are widely used emergent plants in constructed wetlands. Hydraulic retention time (HRT), water flow regimes, substrate, plant, and microbial biomass substantially affect CWs treatment performance.

show abstract

Targeting nitrogen use efficiency for sustained production of cereal crops

Cited by 46 publications

References 190 publications

The fingerprints of climate warming on cereal crops phenology and adaptation options

The fingerprints of climate warming on cereal crops phenology and adaptation options

Epistatic QTLsPlay a Major Role in Nitrogen Use Efficiency and Its Component Traits in Indian Spring Wheat

Mechanistic understanding of the pollutant removal and transformation processes in the constructed wetland system

Contact Info

Product

Resources

About