BECAS
MILANO Clara
congresos y reuniones científicas
Título:
Germination of Seven Legumes Native to Central Argentina
Autor/es:
MILANO, CLARA; TIZÓN, FRANCISCO RODRIGO; PELÁEZ, DANIEL VALERIO
Lugar:
West Monroe, Louisiana
Reunión:
Congreso; 70th Southern Pasture and Forage Crop Improvement Conference; 2016
Institución organizadora:
Louisiana State University
Resumen:
In the last two decades in the southwest portion of Buenos Aires Province (Argentina) the ongoing process of soil deterioration and natural grasslands impoverishment has accelerated. To restore these degraded ecosystems, it is necessary to reincorporate key species from the original plant community, such as native legumes, a very important group due to its ability to improve forage supply and recover fertility through biological nitrogen fixation. The aim of this study was to evaluate germination under different pre-germination treatments of Adesmia filipes (Af), A. incana (Ai), A. muricata (Am), Lathyrus nervosus (Ln), L. pubescens (Lp), Rhynchosia diversifolia (Rd) and R. senna (Rs), all of them promising native legumes. The seven pre-germination treatments used were control, physical scarification with sand paper (SP), physical scarification with mechanical scarifier (ESC) and immersion in hot water with an initial temperature of 40, 50, 60 and 70°C, for 48 hours. The species Ai, Ln, Lp, Rs and Rd achieved high germination percentages (GP) in at least one treatment, with maximums of 88%, 93%, 96%, 95% and 96%, respectively. Af and Am showed lower GP, with maximums of 17% and 51%, respectively. The best GP considering all the treatments was shown by Ln and Lp. For all species except Ln, SP was successful (p