27th International Septoria Observation Nursery

Pawan Singh Thomas Payne (2020, [Dataset])

The International Septoria Observation Nursery (earlier Septoria Monitoring Nursery – SMN) is a single replicate nursery that contains diverse spring bread wheat (Triticum aestivum) germplasm adapted to ME2 (High rainfall environment) and ME4 (Low rainfall, semi-arid environment) with total 50-100 entries and white/red grain color.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Phenotypic evaluation of the Seeds of Discovery - MasAgro Biodiversidad Linked Topcross Population 1 (LTP1)

Juan Burgueño deepmala sehgal (2019, [Dataset])

Phenotypic evaluation of the Linked Topcross Population 1 (LTP1) from the MasAgro Biodiversidad - Seeds of Discovery Initiative under drought, heat, and irrigated conditions.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Replication Data for: Identifying loci with breeding potential across temperate and tropical adaptation via EigenGWAS and EnvGWAS

Guo-Bo Chen awais rasheed Kai Sonder Cristian Zavala Espinosa Denise Costich Patrick Schnable Sarah Hearne Huihui Li (2019, [Dataset])

This dataset contains the genotypic data obtained using genotyping-by-sequencing (tGBS®) technology (Data2Bio LLC) and the passport data of a total of 1,143 maize accessions, which were collected from 20 countries, including 11 teosinte inbred lines, 764 landraces sampled from the maize collection of the CIMMYT germplasm bank (MGB), 290 CIMMYT elite maize lines (CMLs), and 78 popcorn lines from the USDA Ames inbred collection (Romay et al., 2013).

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Seeds of Discovery - MasAgro Biodiversidad Wheat Morphological Characterization and Grain Quality Analyses

Thomas Payne Roberto Peña Carolina Saint Pierre Carlos Guzman (2019, [Dataset])

This study contains raw phenotypic data files related to grain quality analyses and morphological characterization of wheat accessions.The trials include: (1) 1SEEDXCT_Batan (2) SEEDXCT_A_B_C_D (3) 2SEEDXCT (4) 3SEED_XCT: TID 52508, 52509 (5) INCBV (6) MXI_2011-2012 (7) MXI_2012-2013. . ** Please note that these data have not been rigorously curated.**

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

2019 release of SNP allele frequency data for maize accessions in the CIMMYT Germplasm Bank maize collection

Sarah Hearne Jorge Franco jiafa chen (2019, [Dataset])

The Maize Collection in the CIMMYT Germplasm Bank was genotyped using DArTSeq technology. Pooled DNA samples were generated from over 25,000 accessions. The counts of resulting SNPs were used to evaluate the allele frequencies of alleles present within the maize accessions. The genotyping method is described in: http://hdl.handle.net/11529/10548358.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Monitoring and evaluation of the long-term effects of conservation agriculture on soil quality.

Christian Thierfelder Blessing Mhlanga (2016, [Dataset])

This trial is designed with 1 conventional farmers practice and 4 conservation agriculture (CA) treatments in 5 replications; Plots are subdivided into a continues maize area and a maize/legume (sunnhemp) rotation to investigate the effect of CA practices on soil quality and system productivity. The trial was set in the growing season of 2005 and is still running through to 2017 and beyond. The treatments are as follows: T1. Conventional mouldboard ploughing (CPM): maize with residue removal, manual seeding and fertilization in the tilled seedbed after ploughing. Plots are subdivided into split plots with continues maize and a maize/sunnhemp rotation T2. Sub-soiling with a Magoye ripper (RIM): maize with residue retention, manual seeding and fertilization in the ripping line. Plots are subdivided into split plots with continues maize and a maize/sunnhemp rotation T3. Direct seeding (DSM) with a Fitarelli Jabplanter: maize with residue retention, seeding and fertilization is carried out with the Jabplanter. Plots are subdivided into split plots with continues maize and a maize/sunnhemp rotation T4. Basin Planting (BAM): maize with residue retention, a manual system were basins (at 15cm x 15cm x 15cm spacing) are dug with hoes during the winter period and manually seeded and fertilized at the onset of rains. Plots are subdivided into split plots with continues maize and a maize/sunnhemp rotation T5. Magoye ripping (RI-ML): maize with residue retention, intercropped with cowpea (Vigna unguiculata) at seeding of maize. Plots are subdivided into split plots with continues maize/cowpea pea and a maize/cowpea//sunnh emp rotation.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Monitoring and evaluation of the effects over time of conservation agriculture practices on crop yield, soil quality, weeds, pests and diseases.

Christian Thierfelder Blessing Mhlanga (2016, [Dataset])

This data set is from a long-term (2010-2016) trial set in sandy soils. The study seeks to monitor and evaluate the effects over time of conservation agriculture (CA) practices on crop yield, soil quality, weeds, pests and diseases. The trial was set as a randomised complete block design with the following treatments: T1: Check plot (CP); traditional farmers practice using the mouldboard plough, maize as a sole crop, no residue retention, stubbles incorporated T2: Direct seeding with animal drawn seeder (DSM), maize as a sole crop, residue retention (at a rate of 2.5-3 t ha-1 in the first year, thereafter all crop residues retained) T3: Basin (BAM), maize as a sole crop, residue retention T4: Jab planter (JPM), maize as a sole crop, residue retention T5: Direct seeding with animal drawn seeder (DSMB), biochar incorporated, maize as a sole crop, residue retention T6: Direct seeding with animal drawn seeder (DSMP), maize-pigeon pea (Cajanus cajan) intercropping, residue retention T7: Crop rotation A1 (A1M): direct seeding with animal drawn seeder, maize-groundnut rotation (Phase 1), residue retention; Maize- Groundnut T8: Crop rotation A2(A2G): direct seeding with animal drawn seeder, maize-groundnuts rotation (Phase 2), residue retention; Groundnuts- Maize T9: Crop rotation B1 (B1M): direct seeding with animal drawn seeder, maize-sunflower rotation (Phase 1), residue retention; Maize- Sunflower T10: Crop rotation B2 (B2S): direct seeding with animal drawn seeder, maize-sunflower rotation (Phase 2), residue retention; Sunflower- Maize.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

35th Elite Selection Wheat Yield Trial

Ravi Singh Thomas Payne (2017, [Dataset])

The Elite Selection Wheat Yield Trial (ESWYT) is a replicated yield trial that contains spring bread wheat (Triticum aestivum) germplasm adapted to Mega-environment 1 (ME1) which represents the optimally irrigated, low rainfall areas. Major stresses include leaf, stem and yellow rusts, Karnal bunt, and lodging. Representative areas include the Gangetic Valley (India), the Indus Valley (Pakistan), the Nile Valley (Egypt), irrigated river valleys in parts of China (e.g. Chengdu), and the Yaqui Valley (Mexico). This ME encompasses 36 million hectares spread primarily over Asia and Africa between 350S -350N latitudes. White (amber)-grained types are preferred by consumers of wheat in the vast majority of the areas. It is distributed to upto 200 locations and contains 50 entries.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

33rd Semi-Arid Wheat Screening Nursery

Ravi Singh Thomas Payne (2017, [Dataset])

The Semi-Arid Wheat Screening Nursery (SAWSN) is a single replicate trial that contains diverse spring bread wheat (Triticum aestivum) germplasm adapted to low rainfall, drought prone, semi-arid environments typically receiving less than 500 mm of water available during the cropping cycle. CIMMYT's breeding approach attempts to combine high yield potential with drought resistance for ME4. The combination of water-use efficiency and water responsive traits plus yield potential is important in drought environments where rainfall is frequently erratic across years. When rains are significantly above average in certain years, the crop must respond appropriately (water responsive) with higher yields, while expressing resistance to the wider suite of diseases that appear under more favorable conditions. Constrains including leaf, stem and yellow rusts, and Septoria spp., Fusarium spp., Pyrenophora tritici-repentis tan spot, nematodes and root rots must be considered. It is distributed to 120 locations, and contains 150-250 entries.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Facilitating the widespread adoption of conservation agriculture in maize-based systems in Zambia

Christian Thierfelder (2016, [Dataset])

On-farm demonstration plots were set in Zambia to demonstrate the effects of conservation agriculture (CA) technologies as compared to the traditional farmers practice (ploughing with a mouldboard plough). The CA treatments included basins (BA), ripping (RI) and direct seeding with a direct seeder (DS) and direct seeding with a jab planter (JP). Also superimposed to the treatments are rotations and intercropping of maize with a grain legume (either soyabean or cowpea) and these are compared with continuous maize planting. The study is carried out in various communities of Zambia. Thus, the data set presents yields for maize and the legumes from these sites over 9 seasons (2006-2015).

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA