Recent Advances in Dual Purpose Rice and Wheat Research: a synthesis

Blümmel, Michael; Duncan, Alan J.; Lenné, J. M.

doi:10.1016/j.fcr.2020.107823

Cited by 10 publications

(8 citation statements)

References 10 publications

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“…In this study, the existence of exploitable genetic variation in tef for grain-straw yield and straw fodder quality traits was observed over years and across locations. This is in line with reports for other cereal crop residues such as maize, sorghum, rice and wheat, both in Ethiopia and other parts of the world [14,[17][18][19]. Except for the three fiber related traits, which are negatively correlated with other fodder quality traits, and straw yield, the performances of traits were significantly higher in Debre Zeit compared to Holetta.…”

Section: Effect Of Location On Yield and Qualitysupporting

confidence: 90%

“…A substantial amount of research performed over the last few decades has revealed the presence of significant variation in feed traits, both within and between cultivars, of several cereal crops, and demonstrated that this variation can be exploited without compromising the grain traits [14,[17][18][19]]. Considering the importance of feeding the straw in support of livestock production, little effort has been put into exploiting the opportunity to improve both the grain and crop residue traits of tef concurrently.…”

Section: Introductionmentioning

confidence: 99%

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Exploring the potential to capture variation in grain-straw yield and straw quality traits of tef [ Eragrostis tef (Zucc.) Trotter] varieties.

et al. 2021

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Tef [Eragrostis tef (Zucc.) Trotter] is an indigenous Ethiopian cereal which helps provide healthy and nutritious diets for people and a palatable straw for livestock feed. This study was conducted to determine the variation in grain-straw yield and straw quality traits of 35 tef varieties and a local check grown in two locations for two years. Straw crude protein (CP), in vitro organic matter digestibility (IVOMD), metabolizable energy (ME) and the yields of grain (GY) and straw (STY) were significantly (P < 0.01) affected by variety, environment and their interactions. GY, CP, ME and IVOMD were significantly higher in the Debre Zeit site compared to Holetta and, except for GY, in 2016 compared to 2015. About 150% and 25% higher mean CP content was recorded in Debre Zeit than in Holetta, and in 2016 than 2015, respectively. Positive and significant (P<0.01) associations were observed between GY and STY, among CP, ME and IVOMD, and among NDF, ADF and ADL. Among all studied varieties, Melko produced the highest grain-straw yield and best fodder quality traits. Based on the yields and qualities of both grain and straw, the production of Gimbichu, Quncho and Gola varieties conferred more than 40% economic advantage over the local check in the local markets. Our study generally identified varieties with high grain-straw yield and/or straw quality traits which provided economic advantages for tef production and an opportunity for future utilization in tef improvement programs.

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Section: Effect Of Location On Yield and Qualitysupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Exploring the potential to capture variation in grain-straw yield and straw quality traits of tef [ Eragrostis tef (Zucc.) Trotter] varieties.

et al. 2021

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“…( Ayantunde et al, 2007Ayantunde et al, , 2008 During the past 20 years, a comprehensive research effort has been focused on the development of a number of dual-purpose crops including work with sorghum, pearl millet, barley, maize, wheat, rice, groundnut and cowpea. Much of this research has been consolidated and synthesised (Blümmel et al, 2013(Blümmel et al, , 2020Lenné et al, 2003). There has been a key interest in increasing the nutritive value of the stover especially in improving the protein content and reducing the fibre.…”

Section: Breeding Of Dual-purpose Crops In the Crop-livestock Circula...mentioning

confidence: 99%

Applying circular economy principles to intensification of livestock production in Sub-Saharan Africa

Duncan,

Ayantunde,

Blummel

et al. 2023

Outlook Agric

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In the context of sustainable agricultural development, much has been made of the need to apply agroecology or regenerative principles to improve rural livelihoods and to align the sector with critical planetary health boundaries. This movement is a reaction to the perceived private and social costs arising from both production and consumption associated with industrialised agriculture, mostly in upper-income countries, with several default assumptions being apparent about applicability elsewhere. The notion of circularity, or the circular economy, is frequently conflated with agro ecological rhetoric, often overlooking a longer tradition of circular resource use efficiency in traditional mixed crop–livestock farming in low-income settings. This paper examines the concept and origins of circularity and reviews some examples of historic circular economy research within the international agricultural research system as applied to smallholder agriculture. These include (i) studies focusing on the impact of crop residue retention, (ii) work on residue incorporation and/or mulching and their effects on crop yields and soil fertility, (iii) research on the effects of manure use on crop yields and soil fertility and (iv) work on the feeding of crop residues to livestock. We consider some promising innovations or practices adhering to circular economy principles. Candidate innovations focus on the improvement of livestock feeding practices including the breeding of dual-purpose crops to enhance livestock nutrition, conversion of cereal straw residues to high-quality feed, use of cassava waste as livestock feed and use of insects as livestock feed. We conclude by considering how circular bio-economy principles might be maintained in the future evolution of food systems in Sub-Saharan Africa.

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“…Breeding lodging-tolerant varieties that are not necessarily short could represent a solution to further yield potential and maximise use of grain and straw without compromising standability. Straw is not only an important component of small-holders livestock systems globally, but also a commodity in its own right (Blümmel et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Multi-donor × elite-based populations reveal QTL for low-lodging wheat

Dreccer

Macdonald²,

Farnsworth

et al. 2022

Theor Appl Genet

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Key message Low-lodging high-yielding wheat germplasm and SNP-tagged novel alleles for lodging were identified in a process that involved selecting donors through functional phenotyping for underlying traits with a designed phenotypic screen, and a crossing strategy involving multiple-donor × elite populations. Abstract Lodging is a barrier to achieving high yield in wheat. As part of a study investigating the potential to breed low-lodging high-yielding wheat, populations were developed crossing four low-lodging high-yielding donors selected based on lodging related traits, with three cultivars. Lodging was evaluated in single rows in an early generation and subsequently in plots in 2 years with contrasting lodging environment. A large number of lines lodged less than their recurrent parents, and some were also higher yielding. Heritability for lodging was high, but the genetic correlation between contrasting environments was intermediate-low. Lodging genotypic rankings in single rows did not correlate well with plots. Populations from the highest lodging background were genotyped (90 K iSelect BeadChip array). Fourteen markers on nine chromosomes were associated with lodging, differing under high- versus low-lodging conditions. Of the fourteen markers, ten were found to co-locate with previously identified QTL for lodging-related traits or at homoeologous locations for previously identified lodging-related QTL, while the remaining four markers (in chromosomes 2D, 4D, 7B and 7D) appear to map to novel QTL for lodging. Lines with more favourable markers lodged less, suggesting value in these markers as a selection tool. This study demonstrates that the combination of donor functional phenotyping, screen design and crossing strategy can help identify novel alleles in germplasm without requiring extensive bi-parental populations.

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Recent Advances in Dual Purpose Rice and Wheat Research: a synthesis

Cited by 10 publications

References 10 publications

Exploring the potential to capture variation in grain-straw yield and straw quality traits of tef [ Eragrostis tef (Zucc.) Trotter] varieties.

Exploring the potential to capture variation in grain-straw yield and straw quality traits of tef [ Eragrostis tef (Zucc.) Trotter] varieties.

Applying circular economy principles to intensification of livestock production in Sub-Saharan Africa

Multi-donor × elite-based populations reveal QTL for low-lodging wheat

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