Publication Date
1993
Description
In 1982 a collection of 426 accessions of Panicum maximum (guinea grass) representative of its natural variability, was introduced co Brazil through a co-operative agreement with Prance. After 2 years of agronomic and morphological evaluation of this germplasm in small plots in Campo Grande, MS, 25 accessions were selected to be tested in diverse ecosystems throughout Brazil. The national network of evaluation was established in January 1988, over 7 states of the country: 2 in the humid tropics, 3 in the savannas, 1 towards the north-east coast and 1 in the subtropics. Agronomic variables studied were dry season and year-round leaf dry matter yields, plant vigour and percent grass cover. A few accessions performed best at all sites, whereas the savanna ecosystem was the most discriminant among accessions. This melhod permitted selection of the accessions which showed regional adaptation, and those which showed overall adaptation.
Citation
Jank, L; Costa, J C.G; Savidan, Y H.; and Do Valle, C B., "New Panicum maximum Cultivars for Diverse Ecosystems in Brazil" (2024). IGC Proceedings (1993-2023). 13.
https://uknowledge.uky.edu/igc/1993/session13/13
Included in
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New Panicum maximum Cultivars for Diverse Ecosystems in Brazil
In 1982 a collection of 426 accessions of Panicum maximum (guinea grass) representative of its natural variability, was introduced co Brazil through a co-operative agreement with Prance. After 2 years of agronomic and morphological evaluation of this germplasm in small plots in Campo Grande, MS, 25 accessions were selected to be tested in diverse ecosystems throughout Brazil. The national network of evaluation was established in January 1988, over 7 states of the country: 2 in the humid tropics, 3 in the savannas, 1 towards the north-east coast and 1 in the subtropics. Agronomic variables studied were dry season and year-round leaf dry matter yields, plant vigour and percent grass cover. A few accessions performed best at all sites, whereas the savanna ecosystem was the most discriminant among accessions. This melhod permitted selection of the accessions which showed regional adaptation, and those which showed overall adaptation.
