Track 4-1-2: Breeding Cultivated Forage Species for Biomass, Quality and Stress Tolerance
Description
Red clover (Trifolium pratense L.) is one of the most important forage legumes in temperate regions of the world. In Chile, it is the only forage species with a breeding program that has been continue over decades and produced commercial cultivars. Because of the good seed and forage production potential, red clover cultivars released by the INIA breeding program (INIA-BP) are commercialized both in Chile and abroad. The main limitation of the species worldwide is its low persistence, determined by the high plant mortality due to the deterioration of the main root and crown (Ortega et al., 2014). In the last 26 years, the red clover INIA-BP has improved the productivity and persistence of the species, achieving high genetic gains (Ortega et al., 2014). However, selection methodology until now has not considered consistently phenotyping of roots, even though root architecture and morphology could be related to plant adaptation as described for other species. Therefore, the objective of this work was to characterize the root architecture and morphology of seven advanced synthetic lines (ASLs) of red clover developed by INIA-BP and four commercial cultivars.
Included in
Root Architecture and Morphology of Advanced Synthetic Lines Developed by the Red Clover Breeding Program of INIA-Chile
Red clover (Trifolium pratense L.) is one of the most important forage legumes in temperate regions of the world. In Chile, it is the only forage species with a breeding program that has been continue over decades and produced commercial cultivars. Because of the good seed and forage production potential, red clover cultivars released by the INIA breeding program (INIA-BP) are commercialized both in Chile and abroad. The main limitation of the species worldwide is its low persistence, determined by the high plant mortality due to the deterioration of the main root and crown (Ortega et al., 2014). In the last 26 years, the red clover INIA-BP has improved the productivity and persistence of the species, achieving high genetic gains (Ortega et al., 2014). However, selection methodology until now has not considered consistently phenotyping of roots, even though root architecture and morphology could be related to plant adaptation as described for other species. Therefore, the objective of this work was to characterize the root architecture and morphology of seven advanced synthetic lines (ASLs) of red clover developed by INIA-BP and four commercial cultivars.
