Abstract
Abstract Coffee leaf rust (CLR) is a pandemic and a serious threat for coffee sustainability in many coffee producing countries. To overcome this CLR, the world’s consensus is to use of resistant cultivars which can be created through coffee breeding program. This research aimed to study genotypic and phenotypic correlations between CLR symptoms of seven arabica coffee (Coffea arabica L.) genotypes that were selected from different districts of North Sumatra Province, Indonesia. This experimental research using a randomized complete block design with three replications was conducted at the experimental garden of the Faculty of Agriculture, Universitas HKBP Nommensen in Medan. The result of this study indicate that leaf rust severity (LRS) had a genotypic component variance of 86.8% which indicated that LRS was controlled more dominantly by plant genetics than other unknown factors. Severity indicated by LRS showed no genotypic and phenotypic correlation with dispersal indicated by branch rust incidence (BRI) and leaf rust incidence (LRI). BRI genotypically correlated with LRI. The results of this study could contribute to resistance coffee breeding for CLR.
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Claims 4
Claim · model-written summary
Leaf rust severity had a genotypic component variance of 86.8%, indicating mainly plant genetic control.
- Taxon
- Arabica coffee
Coffea arabicat0 - Outcome
- genotypic component variancee1
- Value
- 86.8%e1
- Qualifier
- leaf rust severity (LRS)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabica Coffee Genotypes in North Sumatra”
e1“leaf rust severity (LRS) had a genotypic component variance of 86.8% which indicated that LRS was controlled more dominantly by plant genetics than other unknown factors”
Claim · model-written summary
Leaf rust severity showed no genotypic and phenotypic correlation with branch rust incidence (BRI) and leaf rust incidence (LRI).
- Taxon
- Arabica coffeeCoffea arabicat0
- Treatment
- dispersal indicated by branch rust incidence (BRI)e2
- Outcome
- genotypic and phenotypic correlatione2
- Direction
- no_changeinferrede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabica Coffee Genotypes in North Sumatra”
e2“Severity indicated by LRS showed no genotypic and phenotypic correlation with dispersal indicated by branch rust incidence (BRI) and leaf rust incidence (LRI)”
Claim · model-written summary
Branch rust incidence was genotypically correlated with leaf rust incidence.
- Taxon
- Arabica coffeeCoffea arabicat0
- Treatment
- BRIe3
- Outcome
- LRIe3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabica Coffee Genotypes in North Sumatra”
e3“BRI genotypically correlated with LRI”
Claim · model-written summary
The results could contribute to resistance coffee breeding for coffee leaf rust.
- Taxon
- Arabica coffeeCoffea arabicat0
- Outcome
- resistance coffee breeding for CLRe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabica Coffee Genotypes in North Sumatra”
e4“The results of this study could contribute to resistance coffee breeding for CLR”