Contributing traits for nitrogen use efficiency in selected wheat genotypes and corollary between screening methodologies

Ranjan, Rumesh; Yadav, R. K.; Kumar, Ashish; Mandal, Swarupa Nanda

doi:10.1080/09064710.2019.1623302

Cited by 11 publications

(18 citation statements)

References 35 publications

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“…The mean performance of the parental line revealed a significant difference for main component traits (SDW, RDW and N% in the shoot) and NUE derived traits (TDW, R:S, NUtE, NUpE, and NUE). Association of different traits with NUE revealed a significant correlation between RDW with NUpE and NUE confirming our earlier findings in wheat germplasm lines [16] and corroborated a similar association in mapping population as reported in wheat [28], rice [54] and wheat [19] under hydroponic conditions.…”

Section: Phenotypic Performance and Association Analysis Among Nue Related Traitssupporting

confidence: 91%

“…Hydroponic condition ensures large-scale evaluation with minimum error and also enable good agreement between hydroponic data and pipe filled with soil for root and NUE traits [16]. Therefore, phenotyping the F 2:3 materials under hydroponic conditions simulates field data or pipe filled with soil [16]. Root traits QTLs detected in hydroponics conditions have coincided with the report for nutrient uptake and yield components in wheat [19,35,39] in field trials.…”

Section: Introductionmentioning

confidence: 53%

“…Theoretically, NUE can be enhanced by improving either NUpE or NUtE or both. This can be practically achieved by a better understanding of genetic regulation of N uptake, assimilation, recycling and remobilization in the different plant organs through different phases of plant growth under contrasting N supply [8,16].…”

Section: Introductionmentioning

confidence: 99%

“…The most challenging task is to study root morphology in soil especially for QTL mapping where many genotypes have to be phenotyped with precision. Hydroponic condition ensures large-scale evaluation with minimum error and also enable good agreement between hydroponic data and pipe filled with soil for root and NUE traits [16]. Therefore, phenotyping the F 2:3 materials under hydroponic conditions simulates field data or pipe filled with soil [16].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Phenotypic Performance and Association Analysis Among Nue Related Traitssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

et al. 2021

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“…us, N fertilizer pledges a significant cost particularly for resource-poor grower and may also have adverse environmental impacts [8]. To meet the projected demand for food while minimizing such environmental concerns, finding N use efficient cultivars among the panel of available resources and optimizing N use efficiency (NUE) through applying the N amount that is required by cultivars based on their responses to N play fundamental roles for sustainable wheat production [9,11].…”

Section: Introductionmentioning

confidence: 99%

Improved Bread and Durum Wheat Cultivars Showed Contrasting Performances in N-Efficiency and N-Responsiveness

Tufa

Diriba-Shiferaw²,

Balemi

et al. 2022

International Journal of Agronomy

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Wheat productivity can be increased by applying nitrogen (N) in the form of chemical fertilizers. However, owning to the high prices, chemical fertilizers are unaffordable to resource-poor farmers in Ethiopia. The use of N-efficient cultivars rather makes an alternative option for sustainable wheat production. Six bread and six durum wheat cultivars were thus evaluated under low N (1 g·pot−1) and optimum N (5 g·pot−1) in six replications. The pot-based treatments were arranged in randomized complete block design in the lathe house at Kulumsa Agricultural Research Center. Results showed that the number of effective tillers (NET), spike length (SL), total dry biomass yield (TBY), grain yield (GY), NDVI values, total N uptake (TNUP), N utilization efficiency (NUtE), N uptake efficiency (NUpE), N use efficiency (NUE), grain, and straw N uptakes were significantly influenced by wheat cultivars and N levels. Under low N, Hidase and Kingbird gave significantly higher GY, whereas Danda’a and Hidase gave significantly higher GY under optimum N. Under low N, Hidase, Kingbird, and Lemu were identified as the most N-efficient, while Ude, Landrace, and Utuba identified as N-inefficient based on multicriterion performance (GY, TBY, SL, NET, TNUP, NHI, NUpE, NUtE, and NUE). Under optimum N, Danda’a, Shorima, Hidase, and Lemu were identified as the most responsive, while Ude, Landrace, and Kingbird identified as nonresponsive to N application. In conclusion, Kingbird is recommended for low N input, while Danda’a and Shorima are recommended for N input intensive, and Hidase and Lemu are recommended for both low and high N input intensive wheat production.

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Integration of algae treatment with hydroponic crop waste to reduce impact of nutrient waste streams

Cowan

White

Olszewska

et al. 2022

J of Sust Agri & Env

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Introduction Controlled environment agriculture (CEA) is expanding globally, but little is known about nutrient losses within these systems, or how to reduce subsequent pollution. This experiment investigates the potential to treat wastewater from hydroponically produced lettuce via the application of algae. Materials and Methods A total of 132 heads of lettuce were produced in the 4‐layer nutrient film technique (NFT) vertical farming rack. Waste from the hydroponic system was used to cultivate naturally occurring algae. Nitrogen (N), phosphorus (P) and other trace elements (Ca, Co, Cu, Fe, K, Mg, Mn, Mo, Ni and Zn) were measured at each stage of production. Results Overall the nutrient use efficiency (NUE) of applied mineral nitrogen (N) and phosphorus (P) was 88.7% and 59.4%. After algae treatment of waste streams the full system NUE of N and P was 99.5% and 95.0% respectively, thus significantly reducing waste heading for sewage. It was found that the crops consumed large quantities of Ca, Cu, Fe and Zn from the rooting sponges used in this experiment, which may have become available due to mineralization and the presence of slightly acidic fertiliser solution. The overall waste produced by the rooting sponge is of concern regarding the full NUE of the system, accounting for approximately 53% and 6% of the total N and P input into the system. Conclusions This study highlights that treating wastewater streams from controlled environment agriculture (CEA) methods such as hydroponics with algae is successful and easy to achieve with little effort. Future efforts by researchers and the CEA industry to better manage nutrient streams is recommended to improve the environmental credentials of developing CEA systems.

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Contributing traits for nitrogen use efficiency in selected wheat genotypes and corollary between screening methodologies

Cited by 11 publications

References 35 publications

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

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

Improved Bread and Durum Wheat Cultivars Showed Contrasting Performances in N-Efficiency and N-Responsiveness

Integration of algae treatment with hydroponic crop waste to reduce impact of nutrient waste streams

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