ArticleBMC plant biology2026
Morpho-biochemical insights into globally collected guava germplasm (Psidium spp.): opportunities for utilization in breeding.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Multivariate assessment of newly developed guava (Psidium guajava L.) hybrids for tree and fruit quality traits.Scientific reports · 2026Article
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15 authors.
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Abstract
backgroundGuava (Psidium guajava L.) is a major pantropical fruit crop, valued for its nutritional composition, wider adaptability, and economic significance. Since its introduction in India during the 17
resultsSubstantial variability was observed among globally collected guava germplasm for fruit traits, with fruit weight ranging from 11.67 g (Psidium molle) to 379 g (S. N90-53), seed number from 8 (S. N11-3) to 512 (S. N15-3), leaf length from 5.57 to 17.17 cm, leaf width from 2.07 to 7.90 cm, and petiole length from 0.17 to 0.77 cm. Germplasm also differed in qualitative descriptors, including branch orientation, bark colour, leaf morphology, tip structure, and fruit surface traits, with wild species forming distinct morphological groups. Additionally, biochemical traits varied widely, including the contents of total soluble solid (6.8-13.8 °Brix), acidity (0.25-1.60%), total sugars (3.62-9.21 g/100 g FW), ascorbic acid (88.36-302.46 mg/100 g FW), ferric reducing antioxidants power (7.74-20.69 µM TE/g FW), free radical scavenging activity (2,2-diphenyl-1-picrylhydrazyl assay)(85.72-98.47%), lycopene (0.05-8.91 mg/100 g FW), and total carotenoids (0.05-2.76 mg/100 g FW). Besides, principal component analysis indicated PC1 (22.1%) related to fruit size and PC2 (15.2%) to biochemical traits. Furthermore, cluster analysis grouped 51 guava genotypes into three clusters, distinguishing wild from cultivated types.
conclusionsThe study confirms the presence of wide morpho-biochemical variability in Psidium germplasm, offering valuable genetic resources for genetic improvement programs, aimed at enhanced fruit quality with rich antioxidants, bio-fortification, and the tailoring of novel guava genotypes with reduced seed content, enhanced seed mellowness, and tenet branching, fitting in high-density planting and improved yield efficiency.
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