Journal article
NAM gene allelic composition and its relation to grain-filling duration and nitrogen utilisation efficiency of Australian wheat
PloS one, Vol.13(10), e0205448
2018
Abstract
Optimising nitrogen fertiliser management in combination with using high nitrogen efficient wheat cultivars is the most effective strategy to maximise productivity in a cost-efficient manner. The present study was designed to investigate the associations between nitrogen utilisation efficiency (NUtE) and the allelic composition of the NAM genes in Australian wheat cultivars. As results, the non-functional NAM-B1 allele was more responsive to the nitrogen levels and increased NUtE significantly, leading to a higher grain yield but reduced grain protein content. Nitrogen application at different developmental stages (mid-tillering, booting, and flowering) did not show significant differences in grain yield and protein content. The NAM-A1 allelic variation is significantly associated with the length of the grain-filling period. While the NAM-A1 allele a was associated with a short to moderate grain-filling phase, the alleles c and d were related to moderate to long grain-filling phase. Thus, selection of appropriate combinations of NAM gene alleles can fine-tune the duration of growth phases affecting sink-source relationships which offers an opportunity to develop high NUtE cultivars for target environments.
Details
- Title
- NAM gene allelic composition and its relation to grain-filling duration and nitrogen utilisation efficiency of Australian wheat
- Authors/Creators
- Z. Al-Habbar (Author/Creator)R. Yang (Author/Creator)A. Juhász (Author/Creator)Xin Hu (Author/Creator)M. She (Author/Creator)M. Anwar (Author/Creator)N. Sultana (Author/Creator)D. Diepeveen (Author/Creator)W. Ma (Author/Creator)S. Islam (Author/Creator)
- Publication Details
- PloS one, Vol.13(10), e0205448
- Publisher
- Public Library of Science
- Identifiers
- 991005545359307891
- Copyright
- © 2018 Alhabbar et al.
- Murdoch Affiliation
- Australia-China Joint Centre for Wheat Improvement; School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
94 File views/ downloads
92 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.424 Crop Yield Optimization
- Web Of Science research areas
- Agronomy
- ESI research areas
- Agricultural Sciences