Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses
The seed yields and limitations to seed production for four tropical grass cultivars were defined via a replicated field experiment conducted over three years at the Cerrados Agricultural Research Centre near Brasilia (latitude 15° 36' S; longitude 47° 42' W) in a tropical savanna region. The four g...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1983
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/44076 |
| _version_ | 1855532346891042816 |
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| author | Andrade, Ronaldo P. de Thomas, D. Ferguson, John E. |
| author_browse | Andrade, Ronaldo P. de Ferguson, John E. Thomas, D. |
| author_facet | Andrade, Ronaldo P. de Thomas, D. Ferguson, John E. |
| author_sort | Andrade, Ronaldo P. de |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The seed yields and limitations to seed production for four tropical grass cultivars were defined via a replicated field experiment conducted over three years at the Cerrados Agricultural Research Centre near Brasilia (latitude 15° 36' S; longitude 47° 42' W) in a tropical savanna region. The four grasses were Brachiaria humidicola, B. decumbens cv. Basilisk, Panicum maximum var. trichoglume cv. Petrie and Andropogon gayanus var. bisquamulatus cv. Planaltina.
The highest pure seed yields obtained ranged from 330 kg ha 1 for A. gayanus cv. Planaltina, to 501 kg ha 1 for B. humidicola. Observations on flowering behaviour suggested that both Brachiaria species and P. maximum cv. Petrie were day-neutral in their photoperiodic responses. A. gayanus cv. Planaltina had a short-day flowering response. Yields were not limited by diseases or weeds.
Under the relatively high soil fertility conditions, undefoliated stands of A. gayanus cv. Planaltina lodged badly in the second season and seed yield was reduced by 65 per cent. In the following year, however, cutting in January prevented lodging and significantly increased seed yield.
Results indicated that the region is potentially suitable for seed production of all the grasses studied. |
| format | Journal Article |
| id | CGSpace44076 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1983 |
| publishDateRange | 1983 |
| publishDateSort | 1983 |
| record_format | dspace |
| spelling | CGSpace440762023-02-15T05:18:14Z Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses Andrade, Ronaldo P. de Thomas, D. Ferguson, John E. feed crops brachiaria humidicola brachiaria decumbens panicum maximum andropogon gayanus producción de semillas floración cosecha inflorescencias cerrado brachiaria panicum andropogon gramineas estadios del desarrollo rendimiento registro del tiempo sabanas fisiología animal anatomía de la planta botanica características agronómicas desarrollo de la planta ecología ecosistema fisiología vegetal vegetación The seed yields and limitations to seed production for four tropical grass cultivars were defined via a replicated field experiment conducted over three years at the Cerrados Agricultural Research Centre near Brasilia (latitude 15° 36' S; longitude 47° 42' W) in a tropical savanna region. The four grasses were Brachiaria humidicola, B. decumbens cv. Basilisk, Panicum maximum var. trichoglume cv. Petrie and Andropogon gayanus var. bisquamulatus cv. Planaltina. The highest pure seed yields obtained ranged from 330 kg ha 1 for A. gayanus cv. Planaltina, to 501 kg ha 1 for B. humidicola. Observations on flowering behaviour suggested that both Brachiaria species and P. maximum cv. Petrie were day-neutral in their photoperiodic responses. A. gayanus cv. Planaltina had a short-day flowering response. Yields were not limited by diseases or weeds. Under the relatively high soil fertility conditions, undefoliated stands of A. gayanus cv. Planaltina lodged badly in the second season and seed yield was reduced by 65 per cent. In the following year, however, cutting in January prevented lodging and significantly increased seed yield. Results indicated that the region is potentially suitable for seed production of all the grasses studied. 1983 2014-10-02T08:33:12Z 2014-10-02T08:33:12Z Journal Article https://hdl.handle.net/10568/44076 en Open Access |
| spellingShingle | feed crops brachiaria humidicola brachiaria decumbens panicum maximum andropogon gayanus producción de semillas floración cosecha inflorescencias cerrado brachiaria panicum andropogon gramineas estadios del desarrollo rendimiento registro del tiempo sabanas fisiología animal anatomía de la planta botanica características agronómicas desarrollo de la planta ecología ecosistema fisiología vegetal vegetación Andrade, Ronaldo P. de Thomas, D. Ferguson, John E. Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses |
| title | Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses |
| title_full | Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses |
| title_fullStr | Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses |
| title_full_unstemmed | Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses |
| title_short | Seed production of pasture species in a tropical savanna region of Brazil. 2. Grasses |
| title_sort | seed production of pasture species in a tropical savanna region of brazil 2 grasses |
| topic | feed crops brachiaria humidicola brachiaria decumbens panicum maximum andropogon gayanus producción de semillas floración cosecha inflorescencias cerrado brachiaria panicum andropogon gramineas estadios del desarrollo rendimiento registro del tiempo sabanas fisiología animal anatomía de la planta botanica características agronómicas desarrollo de la planta ecología ecosistema fisiología vegetal vegetación |
| url | https://hdl.handle.net/10568/44076 |
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