Root Biomass, Water‐Use Efficiency, and Performance of Wheat–Rye Translocations of Chromosomes 1 and 2 in Spring Bread Wheat ‘Pavon’
By B. Ehdaie, R. Whitkus, J. Waines. Crop science, 2003
161 citations recorded by the source corpus.
Positive performance is reported for centric translocations of chromosome 1 of rye (Secale cereale L.) in bread wheat (Triticum aestivum L.). Objectives were to determine the effects of short arm translocations of rye chromosome 1 (1RS) derived from 'Kavkaz' winter wheat, in 'Pavon' spring wheat background, on root biomass, water-use efficiency, and agronomic performance. Pavon and its translocations were evaluated in glasshouse pot experiments in 1997 and 1998 and in field experiments in 1999 and 2000 under well-watered and droughted treatments. The 1RS translocations in Pavon delayed maturity, reduced plant height in some cases, and increased root biomass. Association between root biomass and grain yield was significant under droughted and under well-watered conditions. The 1RS translocations increased grain yield and grain weight, especially under well-watered field conditions. The overall mean grain yield was 4.066 Mg ha -1 for Pavon, 4.895 Mg ha -1 for 1RS.1AL, 4.503 Mg ha -1 for 1RS.1BL, and 4.632 Mg ha -1 for 1RS.1DL. The 1RS translocations, in general, were more tolerant to field environmental stresses than Pavon. These results encourage the development and use of the 1RS.1AL and 1RS.1DL translocations in wheat breeding programs.
Subfields: Plant Science
View Paper: https://www.semanticscholar.org/paper/e8b699bb76fb2eed7b5a55008ae6add62e80b53f
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Citations in the corpus
- Breeding for improved water productivity in temperate cereals: phenotyping, quantitative trait loci, markers and the selection environment (2010, background): “) were found to have 18% more tillers and 36%more root mass than their near-isogenic equivalents without the translocation in well-watered pot conditions; the increase in shoot dry weight was positive but not significant (Ehdaie et al. 2003).”
- Breeding for increased nitrogen‐use efficiency: a review for wheat (T. aestivum L.) (2016, background): “In addition, the wheat–rye translocation in ‘Kavkaz’ for the short arm of chromosome 1 (1RS) has been observed to have increased root biomass at depth (Ehdaie et al. 2003).”
- Identifying physiological traits associated with improved drought resistance in winter wheat (2007, background): “, 1995,1998) and drought resistance (Villareal et al., 1998; Ehdaie et al., 2003).”
- Raising yield potential of wheat. III. Optimizing partitioning to grain while maintaining lodging resistance. (2011, background): “In addition, the rye–wheat translocations of group 1 translocations have been observed to have increased root biomass at depth (Ehdaie et al., 2003).”
- Root System Size Influences Water‐Nutrient Uptake and Nitrate Leaching Potential in Wheat (2010, methodology): “1DL, in sand-pot and field experiments under well-watered and droughted treatments for two years (Ehdaie et al. 2003).”
- Identifying traits to improve the nitrogen economy of wheat: Recent advances and future prospects (2009, background): “1RS wheat-rye translocation (Ehdaie et al., 2003) and for primary synthetic spring wheats grown in Australia (Dreccer et al.”
- PART OF A SPECIAL ISSUE ON MATCHING ROOTS TO THEIR ENVIRONMENT Arapid,controlled-environmentseedlingrootscreenforwheatcorrelateswellwith rooting depths at vegetative, but not reproductive, stages at two field sites (2013, background): “…with long roots in hydroponics had higher yields that those with shorter roots in irrigated but not droughted conditions (Ekanayake et al., 1985); and rye genes in the wheat cultivar Pavon were associated with greater root mass in pots and higher yield in field plots (Ehdaie et al., 2003).”