publication
Raising the Stakes: Cassava Seed Networks at Multiple Scales in Cambodia and Vietnam
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/99103
Abstract
Cassava is one of the most important annual crops in Southeast Asia, and faces increasing seed borne pest and disease pressures. Despite this, cassava seed systems have received scant research attention. In a first analysis of Vietnamese and Cambodian cassava seed systems, we characterized existing cassava seed systems in 2016–2017…
publication
Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture
https://hdl.handle.net/10568/74313
Abstract
Demand for tools to rapidly assess greenhouse gas impacts from policy and technological change in the agricultural sector has catalyzed the development of ‘GHG calculators’— simple accounting approaches that use a mix of emission factors and empirical models to calculate GHG emissions with minimal input data. GHG calculators, however, rely on models calibrated from measurements…
publication
P-TRAP: A panicle trait phenotyping tool
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/51405
Abstract
In crops, inflorescence complexity and the shape and size of the seed are among the most important characters that influence yield. For example, rice panicles vary considerably in the number and order of branches, elongation of the axis, and the shape and size of the seed. Manual low-throughput phenotyping methods are time consuming, and the results are unreliable. However, high…
publication
The effect of cassava mosaic disease on the genetic diversity of cassava in Uganda
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/44161
Abstract
Cassava (Manihot esculenta) is a tropical crop that is grown in Africa, Latin America and Southeast Asia. Cassava was introduced from Latin America into West and East Africa at two independent events. In Uganda a serious threat to cassava's survival is the cassava mosaic disease (CMD). Uganda has had two notable CMD epidemics since…
publication
Genomic prediction of agronomic traits in common bean (Phaseolus vulgaris L.) under environmental stress
Bioversity-CIAT Alliance (Bioversity-CIAT Alliance)
https://hdl.handle.net/10568/110330
Abstract
In plant and animal breeding, genomic prediction models are established to select new lines based on genomic data, without the need for laborious phenotyping. Prediction models can be trained on recent or historic phenotypic data and increasingly available genotypic data. This enables the adoption of genomic…
publication
Identification of the maize gravitropism gene lazy plant1 by a transposon-tagging genome resequencing strategy
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/42279
Abstract
Since their initial discovery, transposons have been widely used as mutagens for forward and reverse genetic screens in a range of organisms. The problems of high copy number and sequence divergence among related transposons have often limited the efficiency at which tagged genes can be identified. A method…
publication
Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/99223
Abstract
A decline in pasture productivity is often associated with a reduction in vegetative cover. We hypothesize that nitrogen (N) in urine deposited by grazing cattle on degraded pastures, with low vegetative cover, is highly susceptible to losses. Here, we quantified the magnitude of…
publication
Associations between common variants in iron-related genes with haematological traits in populations of African ancestry
https://hdl.handle.net/10568/76253
Abstract
Background
Large genome-wide association (GWA) studies of European ancestry individuals have identified multiple genetic variants influencing iron status. Studies on the generalizability of these associations to African ancestry populations have been limited. These studies are important given interethnic differences in iron status and the disproportionate burden of iron…
publication
A stochastic frontier analysis of technical efficiency in smallholder maize production in Zimbabwe: The post-fast-track land reform outlook
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/69147
Abstract
This article analyses the technical efficiency of maize production in Zimbabwe’s smallholder farming communities following the fast-track land reform of the year 2000 with a view of highlighting key entry points for policy. Using a randomly selected sample of 522 smallholder maize…
publication
A review of breeding objectives, genomic resources, and marker-assisted methods in common bean (Phaseolus vulgaris L.)
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/99431
Abstract
Common bean (Phaseolus vulgaris L.), one of the most important grain legume crops for direct human consumption, faces many challenges as a crop. Domesticated from wild relatives that inhabit a relatively narrow ecological niche, common bean faces a wide range of biotic and abiotic constraints within…
publication
Global Sequestration Potential of Increased Organic Carbon in Cropland Soils
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/89405
Abstract
The role of soil organic carbon in global carbon cycles is receiving increasing attention both as a potentially large and uncertain source of CO2 emissions in response to predicted global temperature rises, and as a natural sink for carbon able to reduce atmospheric CO2. There is general agreement that the technical potential for sequestration…
publication
He says, she says: Ecosystem services and gender among indigenous communities in the Colombian Amazon
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/100719
Abstract
Although it has been hypothesized that men and women vary in the way they value ecosystem services, research on ecosystem services rarely incorporates a gender dimension. We conducted research with nine indigenous communities in the Colombian Amazon to understand which ecosystem services men and women perceive as most…
publication
High-resolution and bias-corrected CMIP5 projections for climate change impact assessments
Bioversity-CIAT Alliance (Bioversity-CIAT Alliance)
https://hdl.handle.net/10568/106634
Abstract
Projections of climate change are available at coarse scales (70–400 km). But agricultural and species models typically require finer scale climate data to model climate change impacts. Here, we present a global database of future climates developed by applying the delta method –a method for climate model bias correction. We…
publication
Projected shifts in Coffea arabica suitability among major global producing regions due to climate change
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/65365
Abstract
Regional studies have shown that climate change will affect climatic suitability for Arabica coffee (Coffea arabica) within current regions of production. Increases in temperature and changes in precipitation patterns will decrease yield, reduce quality and increase pest and disease pressure. This is the first…
publication
Balancing rice and non-rice crops: Managing the risks from soil constraints in Mainland Southeast Asian rice systems
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/106078
Publication year
2020
Authors
Vial, Leigh K.
Molesworth, Anika
Lefroy, Rod D.B.
Full Citation
Vial, Leigh K. ; Molesworth, Anika & Lefroy, Rod D.B. (2020).…
