Evidence map›Paper›PMID 42245116›Full record

ArticleFrontiers in plant science2026

Scion genotype dominates drought tolerance in grafted

Zhiwei Ding, Abdul Majeed Baloch, Li Gong, Abdul Wahid Baloch, Jalil Ahmed, Fayyaz Maqbool, Sheharyar Ali, Yunping Dong, Xuejun Li, Weifeng Li and 1 more

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Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Zhiwei Ding *College of Tropical Crops, Yunnan Agricultural University, Puer, China.
Abdul Majeed Baloch *College of Tropical Crops, Yunnan Agricultural University, Puer, China.
Li Gong *College of Tropical Crops, Yunnan Agricultural University, Puer, China.
Abdul Wahid BalochDepartment of Plant Breeding and Genetics, Sindh Agriculture University, Tando Jam, Pakistan.
Jalil AhmedDepartment of Plant Breeding and Genetics, Sindh Agriculture University, Tando Jam, Pakistan.
Fayyaz MaqboolDepartment of Entomology, Sindh Agriculture University, Tando Jam, Pakistan.
Sheharyar AliDepartment of Horticulture, Sindh Agriculture University, Tando Jam, Pakistan.
Yunping DongCollege of Tropical Crops, Yunnan Agricultural University, Puer, China.
Xuejun LiCollege of Tropical Crops, Yunnan Agricultural University, Puer, China.
Weifeng LiCollege of Tropical Crops, Yunnan Agricultural University, Puer, China.
Zhenjiang LvCollege of Tropical Crops, Yunnan Agricultural University, Puer, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Drought is a major abiotic stress limiting coffee production globally. While grafting improves abiotic stress tolerance, the relative contributions of scion and root stock to drought resistance in intraspecific and interspecific grafted Methods: We hypothesized that scion genotype dominates drought responses under severe water stress, whereas rootstock effects prevail under normal irrigation. To test this, we conducted a 120-day pot experiment using daily weighing and replenishment, with three treatments: normal supply (18-25% soil water), mild drought (15-17%), and severe drought (10-12%). Two Results: 'Reyan No.5' scion conferred superior drought tolerance under severe stress via stronger membrane stability (lower malondialdehyde, MDA), higher osmotic adjustment, and more stable antioxidant defense (super oxide dismutase, SOD; peroxidase, POD; catalase, CAT) .'Dafeng No.1' showed higher water use efficiency (WUE) under mild stress but suffered greater oxidative damage. Principal component analysis confirmed scion genotype explained 44. 78% of total physiological variation. Discussion: These findings clarify scion dominance in severe drought tolerance and guide drought-resistant coffee grafting selection.

Indexed as

Coffeadrought toleranceinterspecific graftingintraspecific graftingscion genotype

Identifiers

PMID42245116
PMCPMC13231435

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