Publication Date
1985
Description
The nutritional quality of 61 subterranean clover (Trifolium subterraneum L.) cultivars was studied, during 1982, in the province of Salamanca (semiarid zone of west central Spain). Plant samples were collected at the late-bloom stage and were analyzed for protein, carbohydrates and digestibility. The levels of all these constituents fluctuated within acceptable ranges. Higher relative variability was observed in respect of hemicellulose, protein and lignin, while the digestibility values presented lower relative variability. The latter ranged from 71.1 to 76.1 % with a mean of 73.3%, while protein values ranged from 11.1 to 19.4% with a mean of 14.0%. Chemical constituent contents and digestible dry matter bound per 1 m2 of the stand presented very high variability among the cultivars and were attributed to the differences in dry matter production. The ordering of cultivars obtained on the application of correspondence analysis to the data matrix of the parameters analyzed, was related to their origin and nutritive potentials offered for the studied zone. Higher the nutritive potential of the cul ti vars, higher is their negative coordinates with respect to axis I. Cultivars offering the highest nutritive potential include all those originating from Spain (Salamanca), two-thirds of those from Tunisia and Spain (Badajoz), half of those from Turkey, a third of those from Australia and one from Morocco.
Citation
Garcia-Criado, B; Garcia-Ciudad, A; Rico-Rodriguez, M; and Garcia-Criado, L, "Nutritional Quality of Subterranean Clover Cultivars in West Central Spain" (2025). IGC Proceedings (1989-2023). 35.
https://uknowledge.uky.edu/igc/1989/session14/35
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Nutritional Quality of Subterranean Clover Cultivars in West Central Spain
The nutritional quality of 61 subterranean clover (Trifolium subterraneum L.) cultivars was studied, during 1982, in the province of Salamanca (semiarid zone of west central Spain). Plant samples were collected at the late-bloom stage and were analyzed for protein, carbohydrates and digestibility. The levels of all these constituents fluctuated within acceptable ranges. Higher relative variability was observed in respect of hemicellulose, protein and lignin, while the digestibility values presented lower relative variability. The latter ranged from 71.1 to 76.1 % with a mean of 73.3%, while protein values ranged from 11.1 to 19.4% with a mean of 14.0%. Chemical constituent contents and digestible dry matter bound per 1 m2 of the stand presented very high variability among the cultivars and were attributed to the differences in dry matter production. The ordering of cultivars obtained on the application of correspondence analysis to the data matrix of the parameters analyzed, was related to their origin and nutritive potentials offered for the studied zone. Higher the nutritive potential of the cul ti vars, higher is their negative coordinates with respect to axis I. Cultivars offering the highest nutritive potential include all those originating from Spain (Salamanca), two-thirds of those from Tunisia and Spain (Badajoz), half of those from Turkey, a third of those from Australia and one from Morocco.
