Contrasted agronomical and physiological responses of five <i>Coffea arabica</i> genotypes under soil water deficit in field conditions.

ABSTRACT:

Introduction

Breeding programs have developed high-yielding Coffea arabica F1-hybrids as an adaptation against adverse conditions associated with climate change. However, theresponse to drought of coffee F1 hybrids has seldom been assessed.

Methods

A trial was established with five C. arabica genotypes (2 pure lines: Catimor and Marsellesa and 3 F1 hybrids: Starmaya, Centroamericano and Mundo Maya) planted under the leguminous tree species Leuceana leucocephala. Coffee growth, yield and physiological responses were assessed under a rain-fed (control: CON) and a rainfall reduction treatment (RR) for 2 years.

Results

The RR treatment created a long-term rainfall deficit in a region with suboptimal temperature similar to those predicted by climate change scenarios. Moreo

SUBMITTER: Sarzynski T 

PROVIDER: S-EPMC11500665 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature