Variability and nutritional balance among genotypes of Coffea canephora (Rubiaceae) in drought versus adequate water supply
Biometric analysis of arabica coffee grown in low potassium nutrient solution under greenhouse conditions
Genetic parameters and associations between morpho-agronomic traits and nutritional efficiencies of arabica coffee cultivars were estimated to identify promising traits to assist in the selection of coffee genotypes efficient in potassium use, under limiting conditions of this nutrient. The experiment was conducted in a greenhouse with 20 arabica coffee cultivars grown in nutrient solution with a low potassium level (1.5 mM), using a randomized block design with three replicates.
Evidence of genetic tolerance to low availability of phosphorus in the soil among genotypes of Coffea canephora
The expansion of agriculture to new areas in order to increase the competitiveness of coffee producing countries has resulted in cultivation expanding into regions with lower natural fertility. This scenario has created the need to differentiate genotypes of Conilon coffee based on their tolerance to low levels of nutrients in the soil, especially phosphorus, which imposes high limitations on crop yield in tropical regions.