Sweetpotato [Ipomoea batatas (L.) Lam] genetic incompatibility effects in true hybrids seeds for new farmer cultivars development

Introduction Sweetpotato is a vegetatively propagated, highly heterozygous and outcrossing crop. Genetic improvement of sweetpotato is complicated because of the hexaploid nature of the crop. The objective of this study was to assess genetic compatibility between sweetpotato accessions collected fro...

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Bibliographic Details
Published in:Journal of sustainable agriculture and environment 2023-06, Vol.2 (2), p.122-130
Main Authors: Mahaman Mourtala, Issa Zakari, Chukwu, Samuel C.
Format: Article
Language:English
Subjects:
botanical seeds
Chromosomes
Cloning
Compatibility
Crop production
Crops
Cultivars
Design techniques
Drought
Dry season
Farmers
genetic incompatibility
Genotypes
Germination
Germplasm
Humidity
Hybridization
Hybrids
Incompatibility
Ipomoea batatas
Ipomoea batatas (L.) Lam
New varieties
Plant reproduction
Seeds
Sweet potatoes
sweetpotato
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Summary:Introduction Sweetpotato is a vegetatively propagated, highly heterozygous and outcrossing crop. Genetic improvement of sweetpotato is complicated because of the hexaploid nature of the crop. The objective of this study was to assess genetic compatibility between sweetpotato accessions collected from Niger and Nigeria to select the best parents for the next hybridisation block to develop new farmer varieties. Materials and Methods The experiment was conducted at field experiment of department of crop production and landscape management, Ebonyi State University, Abakaliki, Nigeria. The crossing block was established using diallel mating design method three to cross 13 genotypes. Results Results revealed very highly significant difference (χ2 = 48.32; p 
ISSN:2767-035X
2767-035X
DOI:10.1002/sae2.12044