Early flowering changes robusta coffee yield responses to climate stress and management

Kath, Jarrod; Byrareddy, Vivekananda; Reardon‐Smith, Kathryn; Mushtaq, Shahbaz

doi:10.1016/j.scitotenv.2022.158836

Cited by 13 publications

(1 citation statement)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The analysis of seed maturation and development stages, aiming at identifying the optimal harvest moment, is of interest for genetic improvement, management practices, phenological changes and the overall quality of coffee (Silva et al 2022, Kath et al 2023, because seed quality directly influences plant vigor and plantation productivity. Therefore, the hypothesis is that physiological and morphological maturity occurs at different intervals between early and late maturing clones.…”

Section: Introductionmentioning

confidence: 99%

Physiological quality of seeds of Coffea canephora from early and late clones during maturation

Crasque,

Brandão,

Cerri Neto

et al. 2024

Bragantia

View full text Add to dashboard Cite

The objective of this study was to evaluate the physiological quality of seeds from early and late maturing Coffea canephora clones, aiming to identify the ideal harvest time. The fruits were collected every two weeks from 188 days after anthesis (DAA) and characterized as green, cane green, cherry, raisin and dry. The seeds were evaluated for water content, germination percentage, normal and abnormal seedlings, nongerminated seeds and dead seeds, vigor index, hypocotyl lenght, and root length. Seed germination of the early maturing clone started at 202 DAA, while that of the late maturing clone started at 230 DAA, with both clones showing a water content of 63% and a dry mass of 37%. Although the optimum harvest point was identified at the cherry ripening stage, it was found that the late maturing clone showed a more pronounced variation in the maturation process, directly impacting the physiological quality of the seeds. Furthermore, a significant correlation was observed between the maturation stages and the physiological quality of the seeds. For the early maturing clone, the maximum physiological quality was recorded at 244 DAA, corresponding to 80% of fruits at the cherry stage, while for the late maturing clone this point was reached at 326 DAA, with 98% of the fruits ripe.

show abstract

Section: Introductionmentioning

confidence: 99%

Physiological quality of seeds of Coffea canephora from early and late clones during maturation

Crasque,

Brandão,

Cerri Neto

et al. 2024

Bragantia

View full text Add to dashboard Cite

show abstract

The potential of agroforestry to buffer climate change impacts on suitability of coffee and banana in Uganda

Abigaba,

Chemura,

Gornott

et al. 2024

Agroforest Syst

View full text Add to dashboard Cite

Coffee, an important global commodity, is threatened by climate change. Agroforestry has been considered as one option to maintain or enhance coffee production. In this study, we use a machine learning ensemble consisting of MaxEnt, Random Forest and Boosted Regression Trees to assess climate change impacts on the suitability to grow Arabica coffee, Robusta coffee and bananas in Uganda by 2050. Based on this, the buffering potential of Cordia africana and Ficus natalensis, the two commonly used shading trees in agroforestry systems is assessed. Our robust models (AUC of 0.7–0.9) indicate temperature-related variables as relevant for Arabica coffee suitability, while precipitation-related variables determine Robusta coffee and banana suitability. Under current climatic conditions, only a quarter of the total land area is suitable for growing Arabica coffee, while over three-quarters are suitable for Robusta coffee and bananas. Our results suggest that climate change will reduce the area suitable to grow Arabica coffee, Robusta coffee and bananas by 20%, 9% and 3.5%, respectively, under SSP3-RCP7.0 by 2050. A shift in areas suitable for Arabica coffee to highlands might occur, leading to potential encroachment on protected areas. In our model, implementing agroforestry with up to 50% shading could partially offset suitable area losses for Robusta coffee—but not for Arabica coffee. The potential to produce valuable Arabica coffee thus decreases under climate change and cannot be averted by agroforestry. We conclude that the implementation and design of agroforestry must be based on species, elevation, and regional climate projections to avoid maladaptation.

show abstract

The antioxidant system in coffee

Cesarino,

Mazzafera

2025

Coffee in Health and Disease Prevention

View full text Add to dashboard Cite

Early flowering changes robusta coffee yield responses to climate stress and management

Cited by 13 publications

References 61 publications

Physiological quality of seeds of Coffea canephora from early and late clones during maturation

Physiological quality of seeds of Coffea canephora from early and late clones during maturation

The potential of agroforestry to buffer climate change impacts on suitability of coffee and banana in Uganda

The antioxidant system in coffee

Contact Info

Product

Resources

About