Biomass production and nutritional properties of promising genotypes of <i>Tithonia diversifolia</i> (Hemsl.) A. Gray under different environments

Biomass production and nutritional properties of promising genotypes of <i>Tithonia diversifolia</i> (Hemsl.) A. Gray under different environments

Julián Esteban Rivera, Tomás E. Ruíz, Julián Chará, Juan Florencio Gómez-Leyva, Rolando Barahona

Tithonia diversifolia is a shrub with excellent forage characteristics that has shown a wide genetic and phenotypic diversity. The objective of this study was to determine the biomass production and nutritional quality of seven genotypes of T. diversifolia with outstanding characteristics for ruminant nutrition, to analyze the Genotype x Environment (GxE) interaction of biomass production and to compare the performance of these genotypes with grasses offered normally in tropical conditions. For the GxE interaction the AMMI and SREG models were used, and evaluations were made in three environments. In the GxE analysis, the interaction was significant and effects of the environment on biomass productivity were observed with differences between genotypes (p

2021

10.17138/tgft(9)280-291

Tropical Grasslands-Forrajes Tropicales

Centro Internacional de Agricultura Tropical

Agriculture