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Seed production by an arable weed community
Author(s) -
LEGUIZAMÓN E. S.,
ROBERTS H. A.
Publication year - 1982
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1982.tb00141.x
Subject(s) - weed , chenopodium , loam , biology , arable land , agronomy , horticulture , germination , crop , botany , soil water , agriculture , ecology
Summary After cultivation in early April of a sandy loam soil with 9500 apparently viable seeds/m 2 in 0–10 cm, 295 seedlings/m 2 emerged of which about half survived to maturity in July. Seeds were dispersed from mid‐June to November and 136,460/m 2 were returned to the soil, representing a 14‐fold increase in the seed bank. Application of soil‐acting herbicides reduced the numbers of weeds and the total seed output, but that of tolerant species was increased. Maximum numbers of seeds were 59,980/m 2 for Chenopodium album , 39,430/m 2 for Sleltaria media and 37,580/m 2 for Veronica persica .