Publication Date
1985
Description
In the continuing search for superior germplasm of tropical legumes adapted to Oxisol savanna conditions, a study of the perennial wild species of groundnut (peanut), Arachis pintoi, was initiated at Carimagua Research Station on the eastern plains (Llanos Orientales) of Colombia. A pintoiis an agronomically little-known legume pasture species indigenous to South America. Its performance in grazed association with four different Brachiaria spp. was evaluated in terms of dry matter yield and animal weight gain. A. pintoi was successful under conditions of heavy grazing (2.4 animal units/ha) employed on a year-round basis. Total grass and legume dry matter (DM) yields ranged from 20.5 to 25.4 t/ha/yr. A pintoi in the mixture yielded 5.2 to 9.6 t/ha/yr when harvested at 4-week intervals. B. dictyoneura produced the highest and B. ruziziensis the lowest D M yield. mean annual legume content of the legume-grass mixtures ranged from 20.0% to 44.8%. Soil seed reserves of A pintoi in grazed B. humidicola and B. dictyoneura swards averaged 670 and 618 kernels/m2, respectively. Average daily weight gain on A pintoi-Brachiaria spp. pastures for the 594-day grazing period was 515 g/head. The potential of A. pintoi appears to be good, since there are a limited number of tropical legume species that are both adapted to Oxisols and compatible with the productive, stoloniferous B. humidicola and B. dictyoneura.
Citation
Grof, B, "Forage Attributes of the Perennial Groundnut Arachis pintoi in a Tropical Savanna Environment in Colombia" (2025). IGC Proceedings (1989-2023). 27.
https://uknowledge.uky.edu/igc/1989/session14/27
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Forage Attributes of the Perennial Groundnut Arachis pintoi in a Tropical Savanna Environment in Colombia
In the continuing search for superior germplasm of tropical legumes adapted to Oxisol savanna conditions, a study of the perennial wild species of groundnut (peanut), Arachis pintoi, was initiated at Carimagua Research Station on the eastern plains (Llanos Orientales) of Colombia. A pintoiis an agronomically little-known legume pasture species indigenous to South America. Its performance in grazed association with four different Brachiaria spp. was evaluated in terms of dry matter yield and animal weight gain. A. pintoi was successful under conditions of heavy grazing (2.4 animal units/ha) employed on a year-round basis. Total grass and legume dry matter (DM) yields ranged from 20.5 to 25.4 t/ha/yr. A pintoi in the mixture yielded 5.2 to 9.6 t/ha/yr when harvested at 4-week intervals. B. dictyoneura produced the highest and B. ruziziensis the lowest D M yield. mean annual legume content of the legume-grass mixtures ranged from 20.0% to 44.8%. Soil seed reserves of A pintoi in grazed B. humidicola and B. dictyoneura swards averaged 670 and 618 kernels/m2, respectively. Average daily weight gain on A pintoi-Brachiaria spp. pastures for the 594-day grazing period was 515 g/head. The potential of A. pintoi appears to be good, since there are a limited number of tropical legume species that are both adapted to Oxisols and compatible with the productive, stoloniferous B. humidicola and B. dictyoneura.
