Prolificacy and propagation of silky bent-grass (Apera spica-venti) in rye and winter wheat crops
1981
Szumilak, G. (Akademia Rolnicza, Wroclaw (Poland). Instytut Uprawy Roli i Roslin)
Observation of propagation and prolificacy of silky bent-grass was made in the years 1973-1975 at four stands: in rye and winter wheat grown after various forecrops and in rye and winter wheat monoculture. The propagation and prolificacy of silky bent-grass depended mostly on the conditions existing in the grainfield. The average degree of silky bent-grass propagation was higher in the winter wheat than in the rye field; total propagation was 2.9 and 1.5 and effective propagation [fertile shoots] 2.7 and 1.4 respectively. Silky bent-grass was found to be more fertile in the winter wheat than in the rye field, and the number of grains produced by a plant of this species was, on an average, 4509 in winter wheat and 1461 in rye. The prolificacy of respective silky bent-grass specimens ranged from 74 to 47200 grains from a plant, irrespective of the stand.(Szumilak, G.)
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