13 research outputs found

    Seed germination and emergence of Setaria pallidefusca and Pennisetum pedicellatum (Cyperales: Poaceae) in Nigeria

    No full text
    Seed weight, viability, gennination and emergence of Setaria pallidefusca and Pennisetum pedicellatum were determined under controlled conditions. The seeds of S . pallidefusca and P. pedicellatum had 97% and 94% v铆ability respectively. Optimum gennination ofall seeds occurred at 25掳C. Maximum seedling emergence occurred at the soil surface, there was a progressive decrease at greater depth. Maximum depth for emergence were 5 cm (S . pallidefusca) and 7 cm (P. pedicellatum). Seeds of both species germinated well under varied light conditions. However, there was less gennination under continuous light or darlmess conditions than under altemating day and night conditionsEn condiciones de laboratorio, se determinaron el peso, la viabilidad, la germinaci贸n y la "emergencia" en semillas de Setaria pallidefusca y Pennisetum pedicellatum. Respectivamente, la viabilidad fue de 97 y 94%. La germinaci贸n 贸ptima se dio a los 25 OC y la m谩xima emergencia en la superficie del suelo, con una disminuci贸n progesiva a mayor profundidad. La profundidad m谩xima emergencia fue 5 cm (S. pallidefusca) y 7 cm (P. pedicellatum). Las semillas de ambas especies germinaron bien en varias condiciones de iluminaci贸n. Sin embargo, hubo menos germinaci贸n con luz y oscuridad continuas, que cuando se alternaban luz y oscurida

    Seed germination and emergence of Setaria pallidefusca and Pennisetum pedicellatum (Cyperales: Poaceae) in Nigeria

    No full text
    Seed weight, viability, gennination and emergence of Setaria pallidefusca and Pennisetum pedicellatum were determined under controlled conditions. The seeds of S . pallidefusca and P. pedicellatum had 97% and 94% v铆ability respectively. Optimum gennination ofall seeds occurred at 25掳C. Maximum seedling emergence occurred at the soil surface, there was a progressive decrease at greater depth. Maximum depth for emergence were 5 cm (S . pallidefusca) and 7 cm (P. pedicellatum). Seeds of both species germinated well under varied light conditions. However, there was less gennination under continuous light or darlmess conditions than under altemating day and night conditionsEn condiciones de laboratorio, se determinaron el peso, la viabilidad, la germinaci贸n y la "emergencia" en semillas de Setaria pallidefusca y Pennisetum pedicellatum. Respectivamente, la viabilidad fue de 97 y 94%. La germinaci贸n 贸ptima se dio a los 25 OC y la m谩xima emergencia en la superficie del suelo, con una disminuci贸n progesiva a mayor profundidad. La profundidad m谩xima emergencia fue 5 cm (S. pallidefusca) y 7 cm (P. pedicellatum). Las semillas de ambas especies germinaron bien en varias condiciones de iluminaci贸n. Sin embargo, hubo menos germinaci贸n con luz y oscuridad continuas, que cuando se alternaban luz y oscurida
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