Autor: THOKOZILE NDHLELA

Replication Data for: Bayesian linear regression near infrared spectroscopy (NIR) to predict provitamin A carotenoids content in maize breeding programs

Jose Crossa Thanda Dhliwayo THOKOZILE NDHLELA natalia palacios rojas (2021)

Vitamin A deficiency (VAD) is a public health problem worldwide. For countries with a high per capita consumption of maize, breeding varieties with higher provitamin A carotenoid content than normal yellow maize — biofortification — can be a viable strategy to reduce VAD. Selection for provitamin A carotenoid content uses molecular markers and phenotypic data generated using expensive and laborious wet lab analyses. Near-infrared spectroscopy (NIRS) could be a fast and cheap method to measure carotenoids. This dataset contains carotenoid and NIRS data from 1857 tropical maize samples used as a training set to predict provitamin A carotenoid content of an independent set of 650 tropical maize samples using Bayesian linear regression models. The datasets contain information about specific carotenoids measured and the NIRS values measured at different wavelengths. The results of the analysis are described in the accompanying article.

Dataset

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

2021 CIMMYT Maize Southern Africa Product Announcement

Mainassara Zaman-Allah James Gichuru Gethi Cosmos Magorokosho THOKOZILE NDHLELA Manje Gowda Amsal Tarekegne Aparna Das Nicholas J. Davis Prasanna Boddupalli (2021)

New and improved maize hybrids, developed by the CIMMYT Global Maize Program, are available for uptake by public and private sector partners, especially those interested in marketing or disseminating hybrid maize seed across southern Africa and similar agro-ecological zones. Following a rigorous trialing and a stage-gate advancement process culminating in Stage 5 trials, CIMMYT advanced a total of four new elite maize hybrids in Southern Africa in 2021. Phenotypic data collected in Stage 4 and Stage 5 trials for the selected hybrids as well as information about the trial sites are provided in this dataset. These trials were conducted through a network of partners, including NARES, private seed companies, and NGOs, in eastern and southern Africa under various management and environmental conditions.

Dataset

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

CIMMYT Southern Africa Maize Regional On-Station (Stage 4) and On-Farm (Stage 5) Trials: Results of the 2019, 2021, and 2022 Seasons and Product Announcement

Mainassara Zaman-Allah Xavier-- Mhike Dagne Wegary Gissa James Gichuru Gethi THOKOZILE NDHLELA Manje Gowda Jill Cairns Suresh L.M. Aparna Das Nicholas J. Davis Prasanna Boddupalli (2022)

New and improved maize hybrids, developed by the CIMMYT Global Maize Program, are available for uptake by public and private sector partners, especially those interested in marketing or disseminating hybrid maize seed across Southern Africa and similar agro-ecological zones. Following a rigorous trialing and a stage-gate advancement process culminating in the 2022 Stage 5 trials, CIMMYT advanced a total of seven new elite maize hybrids in Southern Africa in 2022. Phenotypic data collected in Stage 4 and Stage 5 trials for the selected hybrids as well as information about the trial sites are provided in this dataset. These trials were conducted through a network of partners, including NARES and private seed companies, in Southern Africa under various management and environmental conditions.

Dataset

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

CIMMYT Southern Africa Maize Regional On-Station (Stage 4) and On-Farm (Stage 5) Trials: Results of the 2022 and 2023 Seasons and Product Announcement

Dagne Wegary Gissa Mainassara Zaman-Allah James Gichuru Gethi Cosmos Magorokosho Xavier-- Mhike THOKOZILE NDHLELA Jill Cairns Manje Gowda Amsal Tarekegne Suresh L.M. Vijay Chaikam Nicholas J. Davis Prasanna Boddupalli (2023)

New and improved maize hybrids, developed by the CIMMYT Global Maize Program, are available for uptake by public and private sector partners, especially those interested in marketing or disseminating hybrid maize seed across Southern Africa and similar agro-ecological zones. Following a rigorous trialing and a stage-gate advancement process culminating in the 2023 Stage 5 On-farm trials, CIMMYT advanced a total of three new elite maize hybrids in Southern Africa in 2023. Phenotypic data collected in Stage 4 and Stage 5 trials for the selected hybrids as well as information about the trial sites are provided in this dataset. These trials were conducted through a network of partners, including NARES and private seed companies, in Southern Africa under various management and environmental conditions.

Dataset

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA