Publication Date
1993
Description
The agronomic potential of 11 accessions of Centrosema tetragonolobum was assessed In a small-plot clipping trial conducted near Pucallpa, Peru. These accessions were compared with 8 selected accessions of C. acutifolium, C, brasilianum and C. macrocarpum, and 3 accessions of the agronomically little-known C. brachypodum and C. capitatum. All C. tetragonolobum accessions were well adapted to an acid ultisol (pH 4.S, 80% Al saturation). Several of them produced dry matter and seed yields similar to those of promising lines of C. acutifolium and C. macrocarpum, The capacity to root at trailing stems was poor for C. tetragonolobum, C. brasillanum and C. brachypodum, but good for the other species. C. tetragonolobum accessions, with a few exceptions, were more tolerant of rhizoctonia foliar blight than the closely related C. brasilianum. Agronomic performance of accessions of C. bracl1ypodum and C. capltatum was moderate to poor.
Citation
Keller-Grein, Gerhard, "Agronomic Evaluation of Centrosema Germplasm on Acid Utisol in the Humid Tropics of Peru. II. Centrosema tetragonolobum Schultze-Kraft & Williams" (2025). IGC Proceedings (1989-2023). 18.
https://uknowledge.uky.edu/igc/1993/session59/18
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Agronomic Evaluation of Centrosema Germplasm on Acid Utisol in the Humid Tropics of Peru. II. Centrosema tetragonolobum Schultze-Kraft & Williams
The agronomic potential of 11 accessions of Centrosema tetragonolobum was assessed In a small-plot clipping trial conducted near Pucallpa, Peru. These accessions were compared with 8 selected accessions of C. acutifolium, C, brasilianum and C. macrocarpum, and 3 accessions of the agronomically little-known C. brachypodum and C. capitatum. All C. tetragonolobum accessions were well adapted to an acid ultisol (pH 4.S, 80% Al saturation). Several of them produced dry matter and seed yields similar to those of promising lines of C. acutifolium and C. macrocarpum, The capacity to root at trailing stems was poor for C. tetragonolobum, C. brasillanum and C. brachypodum, but good for the other species. C. tetragonolobum accessions, with a few exceptions, were more tolerant of rhizoctonia foliar blight than the closely related C. brasilianum. Agronomic performance of accessions of C. bracl1ypodum and C. capltatum was moderate to poor.
