Viability of Deficit Irrigation Pre-Exposure in Adapting Robusta Coffee to Drought Stress

Coffea canephora has high but inadequately exploited genetic diversity. This diversity, if well exploited, can sustain coffee productivity amidst climate change effects. Drought and heat stress are major global threats to coffee productivity, quality, and tradable volumes. It is not well understood if there is a selectable variation for drought stress tolerance in Robusta coffee half-sibs as a result of watering deficit pre-exposure at the germination stage. Half-sib seeds from selected commercial clones (KR5, KR6, KR7) and a pipeline clone X1 were primed with deficit watering at two growth stages followed by recovery and later evaluated for tolerance to watering deficit stress in three different temperature environments by estimation of plant growth and wilt parameters. Overall, the KR7 family performed the best in terms of the number of individuals excelling for tolerance to deficit watering. In order of decreasing tolerance, the 10 most promising individuals for drought and heat tolerance were identified as: 14.KR7.2, 25.X1.1, 35.KR5.5, 36.KR5.6, 41.KR7.5, 46.KR6.4, 47.KR6.5, 291.X1.3, 318.X1.3, and 15.KR7.3. This is the first prospect into the potential of C. canephora half-sibs’ diversity as an unbound source of genetic variation for abiotic stress tolerance breeding.

[1]  C. J. Carmona,et al.  Clustering: an R library to facilitate the analysis and comparison of cluster algorithms , 2022, Progress in Artificial Intelligence.

[2]  Danilo Força Baroni,et al.  Correlating Coffea canephora 3D architecture to plant photosynthesis at a daily scale and vegetative biomass allocation. , 2022, Tree physiology.

[3]  A. Davis,et al.  The re-emergence of Liberica coffee as a major crop plant. , 2022, Nature plants.

[4]  O. Honnay,et al.  Genetic diversity and structure in wild Robusta coffee (Coffea canephora A. Froehner) populations in Yangambi (DR Congo) and their relation to forest disturbance , 2022, bioRxiv.

[5]  T. Minkina,et al.  Molecular and Physiological Mechanisms to Mitigate Abiotic Stress Conditions in Plants , 2022, Life.

[6]  M. Blair,et al.  Strategies for Robusta Coffee (Coffea canephora) Improvement as a New Crop in Colombia , 2022, Agriculture.

[7]  Zhou Li,et al.  Seed Priming with Chitosan Improves Germination Characteristics Associated with Alterations in Antioxidant Defense and Dehydration-Responsive Pathway in White Clover under Water Stress , 2022, Plants.

[8]  D. Crouzillat,et al.  Ecological and genomic vulnerability to climate change across native populations of Robusta coffee (Coffea canephora) , 2022, Global change biology.

[9]  D. Bartels,et al.  Stress memory responses and seed priming correlate with drought tolerance in plants: an overview , 2022, Planta.

[10]  D. Crouzillat,et al.  Adaptive potential of Coffea canephora from Uganda in response to climate change , 2022, Molecular ecology.

[11]  H. Kalaji,et al.  Seed priming of plants aiding in drought stress tolerance and faster recovery: a review , 2021, Plant Growth Regulation.

[12]  Leidy G. Bobadilla,et al.  Clonal Propagation of Coffea arabica with Indole Butyric Acid and Acclimatization Conditions in Amazonas, Peru , 2021, International Journal of Agronomy.

[13]  D. Sarkar,et al.  Seed Priming: A Potential Supplement in Integrated Resource Management Under Fragile Intensive Ecosystems , 2021, Frontiers in Sustainable Food Systems.

[14]  R. Swennen,et al.  Maximizing genetic representation in seed collections from populations of self and cross-pollinated banana wild relatives , 2021, BMC Plant Biology.

[15]  M. A. Sheikh,et al.  Silicon-Mediated Priming Induces Acclimation to Mild Water-Deficit Stress by Altering Physio-Biochemical Attributes in Wheat Plants , 2021, Frontiers in Plant Science.

[16]  Vivekananda M. Byrareddy,et al.  Temperature and rainfall impacts on robusta coffee bean characteristics , 2021, Climate Risk Management.

[17]  D. Crouzillat,et al.  Genetic diversity of native and cultivated Ugandan Robusta coffee (Coffea canephora Pierre ex A. Froehner): Climate influences, breeding potential and diversity conservation. , 2021, PloS one.

[18]  Trevor Hastie,et al.  An Introduction to Statistical Learning , 2013, Springer Texts in Statistics.

[19]  Daniel Althoff,et al.  Impact of drought associated with high temperatures on Coffea canephora plantations: a case study in Espírito Santo State, Brazil , 2020, Scientific Reports.

[20]  E. Kizito,et al.  Identification of growth stage-specific watering thresholds for drought screening in Solanum aethiopicum Shum , 2020, Scientific Reports.

[21]  Kohske Takahashi,et al.  Welcome to the Tidyverse , 2019, J. Open Source Softw..

[22]  R. Zahoor,et al.  Coping with drought: stress and adaptive mechanisms, and management through cultural and molecular alternatives in cotton as vital constituents for plant stress resilience and fitness , 2018, Biological Research.

[23]  E. Déchamp,et al.  Coffee Somatic Embryogenesis: How Did Research, Experience Gained and Innovations Promote the Commercial Propagation of Elite Clones From the Two Cultivated Species? , 2018, Front. Plant Sci..

[24]  P. Tongoona,et al.  Heritability of drought resistance in Solanum aethiopicum Shum group and combining ability of genotypes for drought tolerance and recovery , 2018, Scientia Horticulturae.

[25]  C. Ferreira,et al.  Challenges and opportunities of new retail horizons in emerging markets: The case of a rising coffee culture in China , 2018, Business Horizons.

[26]  B. H. Ferreira,et al.  High genetic diversity and moderate genetic structure in the self-incompatible, clonal Bromelia hieronymi (Bromeliaceae) , 2018, Botanical Journal of the Linnean Society.

[27]  R. Rocha,et al.  Characterization of gametophytic self-incompatibility of superior clones of Coffea canephora , 2018 .

[28]  R. Belk,et al.  THE TASTE TRANSFORMATION RITUAL IN THE SPECIALTY COFFEE MARKET , 2017 .

[29]  J. Provan,et al.  Low genetic diversity and potential inbreeding in an isolated population of alder buckthorn (Frangula alnus) following a founder effect , 2017, Scientific Reports.

[30]  Y. Baguma,et al.  Stability of Solanum aethiopicum Shum accessions under varied water deficit stress levels and identification of pertinent breeding traits for resistance to water shortage , 2017, Euphytica.

[31]  L. Humeau,et al.  Reproductive patterns, genetic diversity and inbreeding depression in two closely related Jumellea species with contrasting patterns of commonness and distribution. , 2016, Annals of botany.

[32]  L. Nunney.  Adapting to a Changing Environment: Modeling the Interaction of Directional Selection and Plasticity. , 2016, The Journal of heredity.

[33]  R. Aggarwal,et al.  Development of Genic and Genomic SSR Markers of Robusta Coffee (Coffea canephora Pierre Ex A. Froehner) , 2014, PloS one.

[34]  A. Harfouche,et al.  Molecular and physiological responses to abiotic stress in forest trees and their relevance to tree improvement. , 2014, Tree physiology.

[35]  T. Leroy,et al.  Developing core collections to optimize the management and the exploitation of diversity of the coffee Coffea canephora , 2014, Genetica.

[36]  Sylvain Chartier,et al.  The k-means clustering technique: General considerations and implementation in Mathematica , 2013 .

[37]  D. Pot,et al.  Global analysis of Coffea canephora Pierre ex Froehner (Rubiaceae) from the Guineo-Congolese region reveals impacts from climatic refuges and migration effects , 2013, Genetic Resources and Crop Evolution.

[38]  A. Venkateswarlu.  Abiotic Stress Response in Plants - Physiological, Biochemical and Genetic Perspectives , 2011 .

[39]  PackerL..  Coffee plant - pollinator interactions: a review , 2011 .

[40]  D. Pot,et al.  Genetic differentiation of wild and cultivated populations: diversity of Coffea canephora Pierre in Uganda. , 2009, Genome.

[41]  D. Bieysse,et al.  Spatial and temporal analysis of coffee wilt disease caused by Fusarium xylarioides in Coffea canephora , 2008, European Journal of Plant Pathology.

[42]  B Griffing,et al.  Concept of general and specific combining ability in relation to diallel crossing systems , 1956 .