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Full-Season Interference of Silverleaf Nightshade (Solanum elaeagnifolium) with Cotton (Gossypium hirsutum)

Green, J. D. ; Murray, Don S. ; Verhalen, Laval M.

Weed science, 1987-11, Vol.35 (6), p.813-818 [Periódico revisado por pares]

Cambridge, UK: Cambridge University Press

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  • Título:
    Full-Season Interference of Silverleaf Nightshade (Solanum elaeagnifolium) with Cotton (Gossypium hirsutum)
  • Autor: Green, J. D. ; Murray, Don S. ; Verhalen, Laval M.
  • Assuntos: Arid zones ; Bolls ; Cotton ; Crop density ; Crop harvesting ; CROP YIELD ; Density ; GOSSYPIUM HIRSUTUM ; Irrigation ; MALEZAS ; MAUVAISE HERBE ; OKLAHOMA ; PLANT POPULATION ; Plants ; POBLACION VEGETAL ; POPULATION VEGETALE ; RENDEMENT DES CULTURES ; RENDIMIENTO DE CULTIVOS ; SOLANUM ; Weed Biology and Ecology ; Weed competition ; WEEDS
  • É parte de: Weed science, 1987-11, Vol.35 (6), p.813-818
  • Notas: 881651088
    H60
  • Descrição: Full-season interference of silverleaf nightshade (Solanum elaeagnifolium Cav. # SOLEL) with dryland and irrigated cotton (Gossypium hirsutum L. ‘Paymaster 145′) was evaluated in five field experiments during 1984 and 1985, Weed densities ranged from 0 to 32 plants/10 m of crop row. Dry weight of silverleaf nightshade increased from 0.08 to 0.39 kg/plot for each additional weed/10 m of row. Intraspecific competition among silverleaf nightshade plants was not evident. However, cotton height was reduced at weed densities of 4 plants/10 m of row or more. The densities at which initial lint yield reductions occurred ranged from 4 to 32 weed plants/10 m of row. Irrigated cotton more effectively competed with the weed than did dryland cotton, suggesting that soil water was a primary competition factor between the two species. Boll size was reduced at densities of 2 weeds/10 m of row and above. Silverleaf nightshade reduced mechanical harvest efficiency only at densities of 16 and 32 plants/10 m of row. Fiber properties were not affected. Linear regression predicted that lint yield would be reduced 1.54% for each silverleaf nightshade plant/10 m of cotton row. The distance silverleaf nightshade was established from the crop row did not affect the weed's interference with cotton within a range of 0 to 30 cm.
  • Editor: Cambridge, UK: Cambridge University Press
  • Idioma: Inglês
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