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Tag Archives: Breeding

Procedures for the Evaluation of Sweetpotato Trials

Sweetpotato Research Guides (SPRGs) This document describes technologies that have been developed and used by CIP in cooperation with national agriculture research programs to promote research and the exchange of information among sweetpotato scientists. Procedures and forms for data collection described here are now being used in integrated electronic tools …
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Procedures for the Evaluation of Sweetpotato Trials

Sweetpotato Research Guides (SPRGs) This document describes technologies that have been developed and used by CIP in cooperation with national agriculture research programs to promote research and the exchange of information among sweetpotato scientists. Procedures and forms for data collection described here are now being used in integrated electronic tools …
  • Size: 8.3 MB
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  • Pages: 86

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The “Stage Selection Gain 1to3”

Readme for SSG1to3 program The “Stage Selection Gain 1to3” (SSG1to3) in R (SSG1to3_R) or SAS (SSG1to3_SAS) is a simple program to determine the response to selection in standardized units (R) after 1-stage selection with up to three seasons of testing, 2-stage selection with two seasons of testing, and 3-stage selection …
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2019 SPHI Brief 34. Genomic tools for sweetpotato improvement project (GT4SP).

We developed genomic and genetic resources for sweetpotato improvement, including genome sequencing and annotation of two diploid relatives, to be used as reference genomes for cultivated sweetpotato. We developed a sequence-based single nucleotide polymorphism (SNP) genotyping platform, with supporting bioinformatics and analytical tools to facilitate marker-assisted breeding. We additionally developed …
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2019 SASHA Brief 06. Breeding for continuous storage root formation and bulking in sweetpotato.

Research conducted on diverse sweetpotato germplasm showed that some genotypes form their roots at the same time, that are of the same maturity (discontinuous storage root formation and bulking) and other continue to form roots over time (continuous root forming), which aligns with the traditional practice of piecemeal harvesting. The …
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2019 SASHA Brief 05. Breeding and prospects for low sweet sweetpotato in West Africa.

A trained sensory panel was developed to assist with breeding for sweetpotato quality preferences of consumers in West Africa. Lexicons of terms to precisely describe boiled and fried sweetpotato sensory quality have been developed using trained sensory panel. Trained panel results showed that there is no direct relationship between sugar …
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2019 SASHA Brief 04. Major achievements in breeding for drought tolerance and high iron orange-fleshed sweetpotato in Mozambique: Lessons learned and achievements in phase 2 (2014-2019)

Successful second round of accelerated breeding completed, with the release of 4 orange-fleshed (OFSP) and 3 purple-fleshed (PFSP) drought tolerant sweetpotato varieties in 2016. Third round will be completed in 2019. Early season and terminal drought have negative effects on storage root yield (Fig. 1). Thick vines offer a morphological …
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SASHA Brief 01. The sweetpotato breeding community of practice: Breeding in Africa for Africa (2009-2019).

• A vibrant community of practice consisting of sweetpotato breeders from 16 African countries has been strengthened during the past 10 years, adopting modern breeding methods and releasing user-preferred varieties having an impact on health and wealth. • Since 2009, sweetpotato breeders in 16 countries have released 143 varieties, with …
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Report of new cultivar. ‘INIVIT B-27- 2017 ‘, new sweet potato (Ipomoea batatas (L.) lam.) cultivar biofortified rich in vitamin A

The tuberous roots of orange fleshed sweet potato (OFSP) contain significant amounts of β-carotene; approximately 90 % of the carotenoids in this roots are of this type. Currently there is a growing worldwide demand for this type of sweet potato, due to the effectiveness to counteract VAD. In Cuba in …
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